From 84284534bfaf8c607fb8ea1ceedfcc0d77c10756 Mon Sep 17 00:00:00 2001
From: Kazuhiko Shiozaki <kazuhiko@nexedi.com>
Date: Fri, 7 Jul 2017 16:42:43 +0200
Subject: [PATCH] component/libtiff: version up 4.0.8 and patches from
 tiff_4.0.8-3.debian.

---
 component/libtiff/buildout.cfg              |    6 +-
 component/libtiff/tiff_4.0.7-6.debian.patch | 1920 -------------------
 component/libtiff/tiff_4.0.8-3.debian.patch |  747 ++++++++
 3 files changed, 750 insertions(+), 1923 deletions(-)
 delete mode 100644 component/libtiff/tiff_4.0.7-6.debian.patch
 create mode 100644 component/libtiff/tiff_4.0.8-3.debian.patch

diff --git a/component/libtiff/buildout.cfg b/component/libtiff/buildout.cfg
index a8302f4f0..315fa6556 100644
--- a/component/libtiff/buildout.cfg
+++ b/component/libtiff/buildout.cfg
@@ -10,15 +10,15 @@ parts =
 
 [libtiff]
 recipe = slapos.recipe.cmmi
-url = http://download.osgeo.org/libtiff/tiff-4.0.7.tar.gz
-md5sum = 77ae928d2c6b7fb46a21c3a29325157b
+url = http://download.osgeo.org/libtiff/tiff-4.0.8.tar.gz
+md5sum = 2a7d1c1318416ddf36d5f6fa4600069b
 configure-options =
   --disable-static
   --without-x
   --disable-lzma
 patch-options = -p1
 patches =
-  ${:_profile_base_location_}/tiff_4.0.7-6.debian.patch#b9249bb352e693b7975f9d343018994d
+  ${:_profile_base_location_}/tiff_4.0.8-3.debian.patch#9f52aed13d6ae864b3fb46372fe97780
 environment =
   CPPFLAGS=-I${libjpeg:location}/include -I${jbigkit:location}/include -I${zlib:location}/include
   LDFLAGS=-L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib -L${jbigkit:location}/lib -Wl,-rpath=${jbigkit:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
diff --git a/component/libtiff/tiff_4.0.7-6.debian.patch b/component/libtiff/tiff_4.0.7-6.debian.patch
deleted file mode 100644
index bfc665470..000000000
--- a/component/libtiff/tiff_4.0.7-6.debian.patch
+++ /dev/null
@@ -1,1920 +0,0 @@
-commit 8c101323f5789ef6a0db952d53794e9c4ba48207
-Author: erouault <erouault>
-Date:   Fri Dec 2 21:56:56 2016 +0000
-
-    * libtiff/tif_read.c, libtiff/tiffiop.h: fix uint32 overflow in
-    TIFFReadEncodedStrip() that caused an integer division by zero.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2596
-
-diff --git a/ChangeLog b/ChangeLog
-index 46a5d7c..668b66a 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,3 +1,10 @@
-+2016-12-02 Even Rouault <even.rouault at spatialys.com>
-+
-+	* libtiff/tif_read.c, libtiff/tiffiop.h: fix uint32 overflow in
-+	TIFFReadEncodedStrip() that caused an integer division by zero.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2596
-+
- 2016-11-19  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>
- 
- 	* libtiff 4.0.7 released.
-diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
-index 8003592..29a311d 100644
---- a/libtiff/tif_read.c
-+++ b/libtiff/tif_read.c
-@@ -1,4 +1,4 @@
--/* $Id: tif_read.c,v 1.49 2016-07-10 18:00:21 erouault Exp $ */
-+/* $Id: tif_read.c,v 1.50 2016-12-02 21:56:56 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -346,7 +346,7 @@ TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
- 	rowsperstrip=td->td_rowsperstrip;
- 	if (rowsperstrip>td->td_imagelength)
- 		rowsperstrip=td->td_imagelength;
--	stripsperplane=((td->td_imagelength+rowsperstrip-1)/rowsperstrip);
-+	stripsperplane= TIFFhowmany_32_maxuint_compat(td->td_imagelength, rowsperstrip);
- 	stripinplane=(strip%stripsperplane);
- 	plane=(uint16)(strip/stripsperplane);
- 	rows=td->td_imagelength-stripinplane*rowsperstrip;
-diff --git a/libtiff/tiffiop.h b/libtiff/tiffiop.h
-index 8bcd0c1..5294ee7 100644
---- a/libtiff/tiffiop.h
-+++ b/libtiff/tiffiop.h
-@@ -1,4 +1,4 @@
--/* $Id: tiffiop.h,v 1.89 2016-01-23 21:20:34 erouault Exp $ */
-+/* $Id: tiffiop.h,v 1.90 2016-12-02 21:56:56 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -250,6 +250,10 @@ struct tiff {
- #define TIFFhowmany_32(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \
- 			   ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \
- 			   0U)
-+/* Variant of TIFFhowmany_32() that doesn't return 0 if x close to MAXUINT. */
-+/* Caution: TIFFhowmany_32_maxuint_compat(x,y)*y might overflow */
-+#define TIFFhowmany_32_maxuint_compat(x, y) \
-+			   (((uint32)(x) / (uint32)(y)) + ((((uint32)(x) % (uint32)(y)) != 0) ? 1 : 0))
- #define TIFFhowmany8_32(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3)
- #define TIFFroundup_32(x, y) (TIFFhowmany_32(x,y)*(y))
- #define TIFFhowmany_64(x, y) ((((uint64)(x))+(((uint64)(y))-1))/((uint64)(y)))
-commit b412777317cabbf8ed89ca38fb180991cca89b8c
-Author: erouault <erouault>
-Date:   Fri Dec 2 22:13:32 2016 +0000
-
-    * tools/tiffcp.c: avoid uint32 underflow in cpDecodedStrips that
-    can cause various issues, such as buffer overflows in the library.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2598
-
-diff --git a/ChangeLog b/ChangeLog
-index 668b66a..0f154d6 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2016-12-02 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffcp.c: avoid uint32 underflow in cpDecodedStrips that 
-+	can cause various issues, such as buffer overflows in the library.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2598
-+
-+2016-12-02 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_read.c, libtiff/tiffiop.h: fix uint32 overflow in
- 	TIFFReadEncodedStrip() that caused an integer division by zero.
- 	Reported by Agostino Sarubbo.
-diff --git a/tools/tiffcp.c b/tools/tiffcp.c
-index 338a3d1..6dfb9a9 100644
---- a/tools/tiffcp.c
-+++ b/tools/tiffcp.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffcp.c,v 1.55 2016-10-08 15:54:57 erouault Exp $ */
-+/* $Id: tiffcp.c,v 1.56 2016-12-02 22:13:32 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -985,7 +985,7 @@ DECLAREcpFunc(cpDecodedStrips)
- 		tstrip_t s, ns = TIFFNumberOfStrips(in);
- 		uint32 row = 0;
- 		_TIFFmemset(buf, 0, stripsize);
--		for (s = 0; s < ns; s++) {
-+		for (s = 0; s < ns && row < imagelength; s++) {
- 			tsize_t cc = (row + rowsperstrip > imagelength) ?
- 			    TIFFVStripSize(in, imagelength - row) : stripsize;
- 			if (TIFFReadEncodedStrip(in, s, buf, cc) < 0
-commit da99990ba6e1203798a59eb836fc6433ed6e3d66
-Author: erouault <erouault>
-Date:   Fri Dec 2 23:05:51 2016 +0000
-
-    * libtiff/tif_pixarlog.c, libtiff/tif_luv.c: fix heap-based buffer
-    overflow on generation of PixarLog / LUV compressed files, with
-    ColorMap, TransferFunction attached and nasty plays with bitspersample.
-    The fix for LUV has not been tested, but suffers from the same kind
-    of issue of PixarLog.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2604
-
-diff --git a/ChangeLog b/ChangeLog
-index 0f154d6..93c01f8 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,3 +1,13 @@
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
-+	* libtiff/tif_pixarlog.c, libtiff/tif_luv.c: fix heap-based buffer
-+	overflow on generation of PixarLog / LUV compressed files, with
-+	ColorMap, TransferFunction attached and nasty plays with bitspersample.
-+	The fix for LUV has not been tested, but suffers from the same kind
-+	of issue of PixarLog.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2604
-+
- 2016-12-02 Even Rouault <even.rouault at spatialys.com>
- 
- 	* tools/tiffcp.c: avoid uint32 underflow in cpDecodedStrips that 
-diff --git a/libtiff/tif_luv.c b/libtiff/tif_luv.c
-index ca08f30..f42ac01 100644
---- a/libtiff/tif_luv.c
-+++ b/libtiff/tif_luv.c
-@@ -1,4 +1,4 @@
--/* $Id: tif_luv.c,v 1.43 2016-09-04 21:32:56 erouault Exp $ */
-+/* $Id: tif_luv.c,v 1.44 2016-12-02 23:05:51 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1997 Greg Ward Larson
-@@ -158,6 +158,7 @@
- typedef struct logLuvState LogLuvState;
- 
- struct logLuvState {
-+        int                     encoder_state;  /* 1 if encoder correctly initialized */
- 	int                     user_datafmt;   /* user data format */
- 	int                     encode_meth;    /* encoding method */
- 	int                     pixel_size;     /* bytes per pixel */
-@@ -1552,6 +1553,7 @@ LogLuvSetupEncode(TIFF* tif)
- 		    td->td_photometric, "must be either LogLUV or LogL");
- 		break;
- 	}
-+	sp->encoder_state = 1;
- 	return (1);
- notsupported:
- 	TIFFErrorExt(tif->tif_clientdata, module,
-@@ -1563,19 +1565,27 @@ notsupported:
- static void
- LogLuvClose(TIFF* tif)
- {
-+        LogLuvState* sp = (LogLuvState*) tif->tif_data;
- 	TIFFDirectory *td = &tif->tif_dir;
- 
-+	assert(sp != 0);
- 	/*
- 	 * For consistency, we always want to write out the same
- 	 * bitspersample and sampleformat for our TIFF file,
- 	 * regardless of the data format being used by the application.
- 	 * Since this routine is called after tags have been set but
- 	 * before they have been recorded in the file, we reset them here.
-+         * Note: this is really a nasty approach. See PixarLogClose
- 	 */
--	td->td_samplesperpixel =
--	    (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3;
--	td->td_bitspersample = 16;
--	td->td_sampleformat = SAMPLEFORMAT_INT;
-+        if( sp->encoder_state )
-+        {
-+            /* See PixarLogClose. Might avoid issues with tags whose size depends
-+             * on those below, but not completely sure this is enough. */
-+            td->td_samplesperpixel =
-+                (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3;
-+            td->td_bitspersample = 16;
-+            td->td_sampleformat = SAMPLEFORMAT_INT;
-+        }
- }
- 
- static void
-diff --git a/libtiff/tif_pixarlog.c b/libtiff/tif_pixarlog.c
-index f4af2ba..9836dce 100644
---- a/libtiff/tif_pixarlog.c
-+++ b/libtiff/tif_pixarlog.c
-@@ -1,4 +1,4 @@
--/* $Id: tif_pixarlog.c,v 1.48 2016-09-23 22:12:18 erouault Exp $ */
-+/* $Id: tif_pixarlog.c,v 1.49 2016-12-02 23:05:51 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1996-1997 Sam Leffler
-@@ -1233,8 +1233,10 @@ PixarLogPostEncode(TIFF* tif)
- static void
- PixarLogClose(TIFF* tif)
- {
-+        PixarLogState* sp = (PixarLogState*) tif->tif_data;
- 	TIFFDirectory *td = &tif->tif_dir;
- 
-+	assert(sp != 0);
- 	/* In a really sneaky (and really incorrect, and untruthful, and
- 	 * troublesome, and error-prone) maneuver that completely goes against
- 	 * the spirit of TIFF, and breaks TIFF, on close, we covertly
-@@ -1243,8 +1245,19 @@ PixarLogClose(TIFF* tif)
- 	 * readers that don't know about PixarLog, or how to set
- 	 * the PIXARLOGDATFMT pseudo-tag.
- 	 */
--	td->td_bitspersample = 8;
--	td->td_sampleformat = SAMPLEFORMAT_UINT;
-+
-+        if (sp->state&PLSTATE_INIT) {
-+            /* We test the state to avoid an issue such as in
-+             * http://bugzilla.maptools.org/show_bug.cgi?id=2604
-+             * What appends in that case is that the bitspersample is 1 and
-+             * a TransferFunction is set. The size of the TransferFunction
-+             * depends on 1<<bitspersample. So if we increase it, an access
-+             * out of the buffer will happen at directory flushing.
-+             * Another option would be to clear those targs. 
-+             */
-+            td->td_bitspersample = 8;
-+            td->td_sampleformat = SAMPLEFORMAT_UINT;
-+        }
- }
- 
- static void
-commit c533d200ecc45e00892a94f9bb2e762a5aa0b2ce
-Author: erouault <erouault>
-Date:   Sat Dec 3 11:02:15 2016 +0000
-
-    * libtiff/tif_dirread.c: modify ChopUpSingleUncompressedStrip() to
-    instanciate compute ntrips as TIFFhowmany_32(td->td_imagelength, rowsperstrip),
-    instead of a logic based on the total size of data. Which is faulty is
-    the total size of data is not sufficient to fill the whole image, and thus
-    results in reading outside of the StripByCounts/StripOffsets arrays when
-    using TIFFReadScanline().
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2608.
-    
-    * libtiff/tif_strip.c: revert the change in TIFFNumberOfStrips() done
-    for http://bugzilla.maptools.org/show_bug.cgi?id=2587 / CVE-2016-9273 since
-    the above change is a better fix that makes it unnecessary.
-
-diff --git a/ChangeLog b/ChangeLog
-index 93c01f8..9dbc7a0 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,20 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tif_dirread.c: modify ChopUpSingleUncompressedStrip() to
-+	instanciate compute ntrips as TIFFhowmany_32(td->td_imagelength, rowsperstrip),
-+	instead of a logic based on the total size of data. Which is faulty is
-+	the total size of data is not sufficient to fill the whole image, and thus
-+	results in reading outside of the StripByCounts/StripOffsets arrays when
-+	using TIFFReadScanline().
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2608.
-+
-+	* libtiff/tif_strip.c: revert the change in TIFFNumberOfStrips() done
-+	for http://bugzilla.maptools.org/show_bug.cgi?id=2587 / CVE-2016-9273 since
-+	the above change is a better fix that makes it unnecessary.
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_pixarlog.c, libtiff/tif_luv.c: fix heap-based buffer
- 	overflow on generation of PixarLog / LUV compressed files, with
- 	ColorMap, TransferFunction attached and nasty plays with bitspersample.
-diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c
-index 01070f2..f290528 100644
---- a/libtiff/tif_dirread.c
-+++ b/libtiff/tif_dirread.c
-@@ -1,4 +1,4 @@
--/* $Id: tif_dirread.c,v 1.204 2016-11-16 15:14:15 erouault Exp $ */
-+/* $Id: tif_dirread.c,v 1.205 2016-12-03 11:02:15 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -5502,8 +5502,7 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
- 	uint64 rowblockbytes;
- 	uint64 stripbytes;
- 	uint32 strip;
--	uint64 nstrips64;
--	uint32 nstrips32;
-+	uint32 nstrips;
- 	uint32 rowsperstrip;
- 	uint64* newcounts;
- 	uint64* newoffsets;
-@@ -5534,18 +5533,17 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
- 	    return;
- 
- 	/*
--	 * never increase the number of strips in an image
-+	 * never increase the number of rows per strip
- 	 */
- 	if (rowsperstrip >= td->td_rowsperstrip)
- 		return;
--	nstrips64 = TIFFhowmany_64(bytecount, stripbytes);
--	if ((nstrips64==0)||(nstrips64>0xFFFFFFFF)) /* something is wonky, do nothing. */
--	    return;
--	nstrips32 = (uint32)nstrips64;
-+        nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip);
-+        if( nstrips == 0 )
-+            return;
- 
--	newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
-+	newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
- 				"for chopped \"StripByteCounts\" array");
--	newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
-+	newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
- 				"for chopped \"StripOffsets\" array");
- 	if (newcounts == NULL || newoffsets == NULL) {
- 		/*
-@@ -5562,18 +5560,18 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
- 	 * Fill the strip information arrays with new bytecounts and offsets
- 	 * that reflect the broken-up format.
- 	 */
--	for (strip = 0; strip < nstrips32; strip++) {
-+	for (strip = 0; strip < nstrips; strip++) {
- 		if (stripbytes > bytecount)
- 			stripbytes = bytecount;
- 		newcounts[strip] = stripbytes;
--		newoffsets[strip] = offset;
-+		newoffsets[strip] = stripbytes ? offset : 0;
- 		offset += stripbytes;
- 		bytecount -= stripbytes;
- 	}
- 	/*
- 	 * Replace old single strip info with multi-strip info.
- 	 */
--	td->td_stripsperimage = td->td_nstrips = nstrips32;
-+	td->td_stripsperimage = td->td_nstrips = nstrips;
- 	TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
- 
- 	_TIFFfree(td->td_stripbytecount);
-diff --git a/libtiff/tif_strip.c b/libtiff/tif_strip.c
-index b6098dd..6e9f2ef 100644
---- a/libtiff/tif_strip.c
-+++ b/libtiff/tif_strip.c
-@@ -1,4 +1,4 @@
--/* $Id: tif_strip.c,v 1.37 2016-11-09 23:00:49 erouault Exp $ */
-+/* $Id: tif_strip.c,v 1.38 2016-12-03 11:02:15 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1991-1997 Sam Leffler
-@@ -63,15 +63,6 @@ TIFFNumberOfStrips(TIFF* tif)
- 	TIFFDirectory *td = &tif->tif_dir;
- 	uint32 nstrips;
- 
--    /* If the value was already computed and store in td_nstrips, then return it,
--       since ChopUpSingleUncompressedStrip might have altered and resized the
--       since the td_stripbytecount and td_stripoffset arrays to the new value
--       after the initial affectation of td_nstrips = TIFFNumberOfStrips() in
--       tif_dirread.c ~line 3612.
--       See http://bugzilla.maptools.org/show_bug.cgi?id=2587 */
--    if( td->td_nstrips )
--        return td->td_nstrips;
--
- 	nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 :
- 	     TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip));
- 	if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
-commit 43576568ed4af4bd43409b7ff36939340141dfd6
-Author: erouault <erouault>
-Date:   Sat Dec 3 11:15:18 2016 +0000
-
-    * libtiff/tif_ojpeg.c: make OJPEGDecode() early exit in case of failure in
-    OJPEGPreDecode(). This will avoid a divide by zero, and potential other issues.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2611
-
-diff --git a/ChangeLog b/ChangeLog
-index 9dbc7a0..5b23665 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tif_ojpeg.c: make OJPEGDecode() early exit in case of failure in
-+	OJPEGPreDecode(). This will avoid a divide by zero, and potential other issues.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2611
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_dirread.c: modify ChopUpSingleUncompressedStrip() to
- 	instanciate compute ntrips as TIFFhowmany_32(td->td_imagelength, rowsperstrip),
- 	instead of a logic based on the total size of data. Which is faulty is
-diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
-index 30a1812..93839d8 100644
---- a/libtiff/tif_ojpeg.c
-+++ b/libtiff/tif_ojpeg.c
-@@ -1,4 +1,4 @@
--/* $Id: tif_ojpeg.c,v 1.65 2016-09-04 21:32:56 erouault Exp $ */
-+/* $Id: tif_ojpeg.c,v 1.66 2016-12-03 11:15:18 erouault Exp $ */
- 
- /* WARNING: The type of JPEG encapsulation defined by the TIFF Version 6.0
-    specification is now totally obsolete and deprecated for new applications and
-@@ -244,6 +244,7 @@ typedef enum {
- 
- typedef struct {
- 	TIFF* tif;
-+        int decoder_ok;
- 	#ifndef LIBJPEG_ENCAP_EXTERNAL
- 	JMP_BUF exit_jmpbuf;
- 	#endif
-@@ -722,6 +723,7 @@ OJPEGPreDecode(TIFF* tif, uint16 s)
- 		}
- 		sp->write_curstrile++;
- 	}
-+	sp->decoder_ok = 1;
- 	return(1);
- }
- 
-@@ -784,8 +786,14 @@ OJPEGPreDecodeSkipScanlines(TIFF* tif)
- static int
- OJPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s)
- {
-+        static const char module[]="OJPEGDecode";
- 	OJPEGState* sp=(OJPEGState*)tif->tif_data;
- 	(void)s;
-+        if( !sp->decoder_ok )
-+        {
-+            TIFFErrorExt(tif->tif_clientdata,module,"Cannot decode: decoder not correctly initialized");
-+            return 0;
-+        }
- 	if (sp->libjpeg_jpeg_query_style==0)
- 	{
- 		if (OJPEGDecodeRaw(tif,buf,cc)==0)
-commit 4307dad7fc153baefeb6bb677060e9c5157e5d42
-Author: erouault <erouault>
-Date:   Sat Dec 3 11:35:56 2016 +0000
-
-    * tools/tiffcrop.c: fix readContigStripsIntoBuffer() in -i (ignore) mode so
-    that the output buffer is correctly incremented to avoid write outside bounds.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2620
-
-diff --git a/ChangeLog b/ChangeLog
-index 5b23665..d6a416b 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffcrop.c: fix readContigStripsIntoBuffer() in -i (ignore) mode so
-+	that the output buffer is correctly incremented to avoid write outside bounds.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2620
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_ojpeg.c: make OJPEGDecode() early exit in case of failure in
- 	OJPEGPreDecode(). This will avoid a divide by zero, and potential other issues.
- 	Reported by Agostino Sarubbo.
-diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
-index 722b132..bdcbd63 100644
---- a/tools/tiffcrop.c
-+++ b/tools/tiffcrop.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffcrop.c,v 1.46 2016-11-18 14:58:46 erouault Exp $ */
-+/* $Id: tiffcrop.c,v 1.47 2016-12-03 11:35:56 erouault Exp $ */
- 
- /* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
-  * the image data through additional options listed below
-@@ -3698,7 +3698,7 @@ static int readContigStripsIntoBuffer (TIFF* in, uint8* buf)
-                                   (unsigned long) strip, (unsigned long)rows);
-                         return 0;
-                 }
--                bufp += bytes_read;
-+                bufp += stripsize;
-         }
- 
-         return 1;
-commit 17d56c24c10ed300233164cc51380979124d6dd8
-Author: erouault <erouault>
-Date:   Sat Dec 3 12:19:32 2016 +0000
-
-    * tools/tiffcrop.c: add 3 extra bytes at end of strip buffer in
-    readSeparateStripsIntoBuffer() to avoid read outside of heap allocated buffer.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2621
-
-diff --git a/ChangeLog b/ChangeLog
-index d6a416b..50db803 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffcrop.c: add 3 extra bytes at end of strip buffer in
-+	readSeparateStripsIntoBuffer() to avoid read outside of heap allocated buffer.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2621
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tiffcrop.c: fix readContigStripsIntoBuffer() in -i (ignore) mode so
- 	that the output buffer is correctly incremented to avoid write outside bounds.
- 	Reported by Agostino Sarubbo.
-diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
-index bdcbd63..9122aab 100644
---- a/tools/tiffcrop.c
-+++ b/tools/tiffcrop.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffcrop.c,v 1.47 2016-12-03 11:35:56 erouault Exp $ */
-+/* $Id: tiffcrop.c,v 1.48 2016-12-03 12:19:32 erouault Exp $ */
- 
- /* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
-  * the image data through additional options listed below
-@@ -4815,10 +4815,17 @@ static int readSeparateStripsIntoBuffer (TIFF *in, uint8 *obuf, uint32 length,
-   nstrips = TIFFNumberOfStrips(in);
-   strips_per_sample = nstrips /spp;
- 
-+  /* Add 3 padding bytes for combineSeparateSamples32bits */
-+  if( (size_t) stripsize > 0xFFFFFFFFU - 3U )
-+  {
-+      TIFFError("readSeparateStripsIntoBuffer", "Integer overflow when calculating buffer size.");
-+      exit(-1);
-+  }
-+
-   for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
-     {
-     srcbuffs[s] = NULL;
--    buff = _TIFFmalloc(stripsize);
-+    buff = _TIFFmalloc(stripsize + 3);
-     if (!buff)
-       {
-       TIFFError ("readSeparateStripsIntoBuffer", 
-@@ -4827,6 +4834,9 @@ static int readSeparateStripsIntoBuffer (TIFF *in, uint8 *obuf, uint32 length,
-         _TIFFfree (srcbuffs[i]);
-       return 0;
-       }
-+    buff[stripsize] = 0;
-+    buff[stripsize+1] = 0;
-+    buff[stripsize+2] = 0;
-     srcbuffs[s] = buff;
-     }
- 
-commit fc9eedf265394eb8a5633160a8fcdb7ece072701
-Author: erouault <erouault>
-Date:   Sat Dec 3 13:00:03 2016 +0000
-
-    * tools/tiffcrop.c: fix integer division by zero when BitsPerSample is missing.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2619
-
-diff --git a/ChangeLog b/ChangeLog
-index 50db803..2940828 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,11 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffcrop.c: fix integer division by zero when BitsPerSample is missing.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2619
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tiffcrop.c: add 3 extra bytes at end of strip buffer in
- 	readSeparateStripsIntoBuffer() to avoid read outside of heap allocated buffer.
- 	Reported by Agostino Sarubbo.
-diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
-index 9122aab..21dd087 100644
---- a/tools/tiffcrop.c
-+++ b/tools/tiffcrop.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffcrop.c,v 1.48 2016-12-03 12:19:32 erouault Exp $ */
-+/* $Id: tiffcrop.c,v 1.49 2016-12-03 13:00:04 erouault Exp $ */
- 
- /* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
-  * the image data through additional options listed below
-@@ -1164,7 +1164,7 @@ writeBufferToSeparateStrips (TIFF* out, uint8* buf,
-   tdata_t  obuf;
- 
-   (void) TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
--  (void) TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps);
-+  (void) TIFFGetFieldDefaulted(out, TIFFTAG_BITSPERSAMPLE, &bps);
-   bytes_per_sample = (bps + 7) / 8;
-   if( width == 0 ||
-       (uint32)bps * (uint32)spp > TIFF_UINT32_MAX / width ||
-@@ -4760,7 +4760,7 @@ static int readSeparateStripsIntoBuffer (TIFF *in, uint8 *obuf, uint32 length,
-   int i, bytes_per_sample, bytes_per_pixel, shift_width, result = 1;
-   uint32 j;
-   int32  bytes_read = 0;
--  uint16 bps, planar;
-+  uint16 bps = 0, planar;
-   uint32 nstrips;
-   uint32 strips_per_sample;
-   uint32 src_rowsize, dst_rowsize, rows_processed, rps;
-@@ -4780,7 +4780,7 @@ static int readSeparateStripsIntoBuffer (TIFF *in, uint8 *obuf, uint32 length,
-     }
- 
-   memset (srcbuffs, '\0', sizeof(srcbuffs));
--  TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
-+  TIFFGetFieldDefaulted(in, TIFFTAG_BITSPERSAMPLE, &bps);
-   TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &planar);
-   TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rps);
-   if (rps > length)
-commit a1d523c27dafafadf589c77e834c52661f1c78fc
-Author: erouault <erouault>
-Date:   Sat Dec 3 14:18:48 2016 +0000
-
-    * tools/tiffinfo.c: fix null pointer dereference in -r mode when the image has
-    no StripByteCount tag.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2594
-
-diff --git a/ChangeLog b/ChangeLog
-index dd27c7f..e41d00c 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffinfo.c: fix null pointer dereference in -r mode when the image has
-+	no StripByteCount tag.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2594
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tiffcrop.c: fix integer division by zero when BitsPerSample is missing.
- 	Reported by Agostino Sarubbo.
- 	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2619
-diff --git a/tools/tiffinfo.c b/tools/tiffinfo.c
-index b02c7d4..4d58055 100644
---- a/tools/tiffinfo.c
-+++ b/tools/tiffinfo.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffinfo.c,v 1.25 2016-11-12 20:06:05 bfriesen Exp $ */
-+/* $Id: tiffinfo.c,v 1.26 2016-12-03 14:18:49 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -417,7 +417,7 @@ TIFFReadRawData(TIFF* tif, int bitrev)
- 	uint64* stripbc=NULL;
- 
- 	TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &stripbc);
--	if (nstrips > 0) {
-+	if (stripbc != NULL && nstrips > 0) {
- 		uint32 bufsize = (uint32) stripbc[0];
- 		tdata_t buf = _TIFFmalloc(bufsize);
- 		tstrip_t s;
-commit 6d3ef98b2415b2edfa36a5ba600d5a824c094309
-Author: erouault <erouault>
-Date:   Sat Dec 3 14:42:40 2016 +0000
-
-    * tools/tiffcp.c: avoid potential division by zero if BitsPerSamples tag is
-    missing.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2597
-
-diff --git a/ChangeLog b/ChangeLog
-index e41d00c..0d7b12d 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffcp.c: avoid potential division by zero if BitsPerSamples tag is
-+	missing.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2597
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tiffinfo.c: fix null pointer dereference in -r mode when the image has
- 	no StripByteCount tag.
- 	Reported by Agostino Sarubbo.
-diff --git a/tools/tiffcp.c b/tools/tiffcp.c
-index 6dfb9a9..c8e48c3 100644
---- a/tools/tiffcp.c
-+++ b/tools/tiffcp.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffcp.c,v 1.56 2016-12-02 22:13:32 erouault Exp $ */
-+/* $Id: tiffcp.c,v 1.57 2016-12-03 14:42:40 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -1378,7 +1378,7 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)
- 	uint8* bufp = (uint8*) buf;
- 	uint32 tw, tl;
- 	uint32 row;
--	uint16 bps, bytes_per_sample;
-+	uint16 bps = 0, bytes_per_sample;
- 
- 	tilebuf = _TIFFmalloc(tilesize);
- 	if (tilebuf == 0)
-@@ -1387,6 +1387,12 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)
- 	(void) TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw);
- 	(void) TIFFGetField(in, TIFFTAG_TILELENGTH, &tl);
- 	(void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
-+        if( bps == 0 )
-+        {
-+            TIFFError(TIFFFileName(in), "Error, cannot read BitsPerSample");
-+            status = 0;
-+            goto done;
-+        }
- 	assert( bps % 8 == 0 );
- 	bytes_per_sample = bps/8;
- 
-commit 9991b31a7c651e7b87a3ccd73b3dc5c67dcfdd60
-Author: erouault <erouault>
-Date:   Sat Dec 3 15:30:31 2016 +0000
-
-    * tools/tif_dir.c: when TIFFGetField(, TIFFTAG_NUMBEROFINKS, ) is called,
-    limit the return number of inks to SamplesPerPixel, so that code that parses
-    ink names doesn't go past the end of the buffer.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2599
-    
-    
-    Reported by Agostino Sarubbo.
-
-diff --git a/ChangeLog b/ChangeLog
-index 0d7b12d..fb9fc0e 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,13 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tif_dir.c: when TIFFGetField(, TIFFTAG_NUMBEROFINKS, ) is called,
-+	limit the return number of inks to SamplesPerPixel, so that code that parses
-+	ink names doesn't go past the end of the buffer.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2599
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tiffcp.c: avoid potential division by zero if BitsPerSamples tag is
- 	missing.
- 	Reported by Agostino Sarubbo.
-diff --git a/libtiff/tif_dir.c b/libtiff/tif_dir.c
-index ad21655..2574e74 100644
---- a/libtiff/tif_dir.c
-+++ b/libtiff/tif_dir.c
-@@ -1,4 +1,4 @@
--/* $Id: tif_dir.c,v 1.127 2016-10-25 21:35:15 erouault Exp $ */
-+/* $Id: tif_dir.c,v 1.128 2016-12-03 15:30:31 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -854,6 +854,32 @@ _TIFFVGetField(TIFF* tif, uint32 tag, va_list ap)
- 	if( fip == NULL ) /* cannot happen since TIFFGetField() already checks it */
- 	    return 0;
- 	
-+        if( tag == TIFFTAG_NUMBEROFINKS )
-+        {
-+            int i;
-+            for (i = 0; i < td->td_customValueCount; i++) {
-+                uint16 val;
-+                TIFFTagValue *tv = td->td_customValues + i;
-+                if (tv->info->field_tag != tag)
-+                    continue;
-+                val = *(uint16 *)tv->value;
-+                /* Truncate to SamplesPerPixel, since the */
-+                /* setting code for INKNAMES assume that there are SamplesPerPixel */
-+                /* inknames. */
-+                /* Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2599 */
-+                if( val > td->td_samplesperpixel )
-+                {
-+                    TIFFWarningExt(tif->tif_clientdata,"_TIFFVGetField",
-+                                   "Truncating NumberOfInks from %u to %u",
-+                                   val, td->td_samplesperpixel);
-+                    val = td->td_samplesperpixel;
-+                }
-+                *va_arg(ap, uint16*) = val;
-+                return 1;
-+            }
-+            return 0;
-+        }
-+
- 	/*
- 	 * We want to force the custom code to be used for custom
- 	 * fields even if the tag happens to match a well known 
-commit 307a31765cb01245e3655ce168385dd7d51e14bd
-Author: erouault <erouault>
-Date:   Sat Dec 3 15:44:15 2016 +0000
-
-    * tools/tiffcp.c: avoid potential division by zero if BitsPerSamples tag is
-    missing.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2607
-
-diff --git a/ChangeLog b/ChangeLog
-index ac2d922..94be038 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffcp.c: avoid potential division by zero if BitsPerSamples tag is
-+	missing.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2607
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tif_dir.c: when TIFFGetField(, TIFFTAG_NUMBEROFINKS, ) is called,
- 	limit the return number of inks to SamplesPerPixel, so that code that parses
- 	ink names doesn't go past the end of the buffer.
-diff --git a/tools/tiffcp.c b/tools/tiffcp.c
-index c8e48c3..142cbb0 100644
---- a/tools/tiffcp.c
-+++ b/tools/tiffcp.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffcp.c,v 1.57 2016-12-03 14:42:40 erouault Exp $ */
-+/* $Id: tiffcp.c,v 1.58 2016-12-03 15:44:15 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -1569,7 +1569,7 @@ DECLAREwriteFunc(writeBufferToSeparateTiles)
- 	uint8* bufp = (uint8*) buf;
- 	uint32 tl, tw;
- 	uint32 row;
--	uint16 bps, bytes_per_sample;
-+	uint16 bps = 0, bytes_per_sample;
- 
- 	obuf = _TIFFmalloc(TIFFTileSize(out));
- 	if (obuf == NULL)
-@@ -1578,6 +1578,12 @@ DECLAREwriteFunc(writeBufferToSeparateTiles)
- 	(void) TIFFGetField(out, TIFFTAG_TILELENGTH, &tl);
- 	(void) TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw);
- 	(void) TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps);
-+        if( bps == 0 )
-+        {
-+            TIFFError(TIFFFileName(out), "Error, cannot read BitsPerSample");
-+            _TIFFfree(obuf);
-+            return 0;
-+        }
- 	assert( bps % 8 == 0 );
- 	bytes_per_sample = bps/8;
- 
-commit b34209fede77aa203cd5adcd9638ccc70731a50f
-Author: erouault <erouault>
-Date:   Sat Dec 3 16:40:01 2016 +0000
-
-    * tools/tiffcp.c: fix uint32 underflow/overflow that can cause heap-based
-    buffer overflow.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2610
-
-diff --git a/ChangeLog b/ChangeLog
-index 94be038..8ee76c0 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffcp.c: fix uint32 underflow/overflow that can cause heap-based
-+	buffer overflow.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2610
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tiffcp.c: avoid potential division by zero if BitsPerSamples tag is
- 	missing.
- 	Reported by Agostino Sarubbo.
-diff --git a/tools/tiffcp.c b/tools/tiffcp.c
-index 142cbb0..6d96bb8 100644
---- a/tools/tiffcp.c
-+++ b/tools/tiffcp.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffcp.c,v 1.58 2016-12-03 15:44:15 erouault Exp $ */
-+/* $Id: tiffcp.c,v 1.59 2016-12-03 16:40:01 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -1163,7 +1163,7 @@ bad:
- 
- static void
- cpStripToTile(uint8* out, uint8* in,
--    uint32 rows, uint32 cols, int outskew, int inskew)
-+    uint32 rows, uint32 cols, int outskew, int64 inskew)
- {
- 	while (rows-- > 0) {
- 		uint32 j = cols;
-@@ -1320,7 +1320,7 @@ DECLAREreadFunc(readContigTilesIntoBuffer)
- 	tdata_t tilebuf;
- 	uint32 imagew = TIFFScanlineSize(in);
- 	uint32 tilew  = TIFFTileRowSize(in);
--	int iskew = imagew - tilew;
-+	int64 iskew = (int64)imagew - (int64)tilew;
- 	uint8* bufp = (uint8*) buf;
- 	uint32 tw, tl;
- 	uint32 row;
-@@ -1348,7 +1348,7 @@ DECLAREreadFunc(readContigTilesIntoBuffer)
- 				status = 0;
- 				goto done;
- 			}
--			if (colb + tilew > imagew) {
-+			if (colb > iskew) {
- 				uint32 width = imagew - colb;
- 				uint32 oskew = tilew - width;
- 				cpStripToTile(bufp + colb,
-commit 18bca4cf3057681689efb502175cbe5f01cb68c3
-Author: erouault <erouault>
-Date:   Sat Dec 3 16:50:02 2016 +0000
-
-    * tools/tiffcp.c: replace assert( (bps % 8) == 0 ) by a non assert check.
-    Reported by Agostino Sarubbo.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2605
-
-diff --git a/ChangeLog b/ChangeLog
-index 8ee76c0..025eb72 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,11 @@
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
-+	* tools/tiffcp.c: replace assert( (bps % 8) == 0 ) by a non assert check.
-+	Reported by Agostino Sarubbo.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2605
-+
-+2016-12-03 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tiffcp.c: fix uint32 underflow/overflow that can cause heap-based
- 	buffer overflow.
- 	Reported by Agostino Sarubbo.
-diff --git a/tools/tiffcp.c b/tools/tiffcp.c
-index 6d96bb8..49c9d37 100644
---- a/tools/tiffcp.c
-+++ b/tools/tiffcp.c
-@@ -1,4 +1,4 @@
--/* $Id: tiffcp.c,v 1.59 2016-12-03 16:40:01 erouault Exp $ */
-+/* $Id: tiffcp.c,v 1.60 2016-12-03 16:50:02 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1988-1997 Sam Leffler
-@@ -45,7 +45,6 @@
- #include <string.h>
- 
- #include <ctype.h>
--#include <assert.h>
- 
- #ifdef HAVE_UNISTD_H
- # include <unistd.h>
-@@ -1393,7 +1392,12 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)
-             status = 0;
-             goto done;
-         }
--	assert( bps % 8 == 0 );
-+        if( (bps % 8) != 0 )
-+        {
-+            TIFFError(TIFFFileName(in), "Error, cannot handle BitsPerSample that is not a multiple of 8");
-+            status = 0;
-+            goto done;
-+        }
- 	bytes_per_sample = bps/8;
- 
- 	for (row = 0; row < imagelength; row += tl) {
-@@ -1584,7 +1588,12 @@ DECLAREwriteFunc(writeBufferToSeparateTiles)
-             _TIFFfree(obuf);
-             return 0;
-         }
--	assert( bps % 8 == 0 );
-+        if( (bps % 8) != 0 )
-+        {
-+            TIFFError(TIFFFileName(out), "Error, cannot handle BitsPerSample that is not a multiple of 8");
-+            _TIFFfree(obuf);
-+            return 0;
-+        }
- 	bytes_per_sample = bps/8;
- 
- 	for (row = 0; row < imagelength; row += tl) {
-commit 8c9dbee088d8b43cdae47b9c5f711058bd1f17f1
-Author: erouault <erouault>
-Date:   Tue Dec 13 18:15:48 2016 +0000
-
-    * libtiff/tif_fax3.h: revert change done on 2016-01-09 that made
-    Param member of TIFFFaxTabEnt structure a uint16 to reduce size of
-    the binary. It happens that the Hylafax software uses the tables that
-    follow this typedef (TIFFFaxMainTable, TIFFFaxWhiteTable,
-    TIFFFaxBlackTable), also they are not in a public libtiff header.
-    Raised by Lee Howard.
-    Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2636
-
-diff --git a/ChangeLog b/ChangeLog
-index ee6fd802..558db20e 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,3 +1,13 @@
-+2016-12-13 Even Rouault <even.rouault at spatialys.com>
-+
-+	* libtiff/tif_fax3.h: revert change done on 2016-01-09 that made
-+	Param member of TIFFFaxTabEnt structure a uint16 to reduce size of
-+	the binary. It happens that the Hylafax software uses the tables that
-+	follow this typedef (TIFFFaxMainTable, TIFFFaxWhiteTable,
-+	TIFFFaxBlackTable), also they are not in a public libtiff header.
-+	Raised by Lee Howard.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2636
-+
- 2016-12-03 Even Rouault <even.rouault at spatialys.com>
- 
- 	* tools/tiffcp.c: replace assert( (bps % 8) == 0 ) by a non assert check.
-diff --git a/libtiff/tif_fax3.h b/libtiff/tif_fax3.h
-index e0b2ca6b..45ce43f1 100644
---- a/libtiff/tif_fax3.h
-+++ b/libtiff/tif_fax3.h
-@@ -1,4 +1,4 @@
--/* $Id: tif_fax3.h,v 1.11 2016-01-23 21:20:34 erouault Exp $ */
-+/* $Id: tif_fax3.h,v 1.12 2016-12-13 18:15:48 erouault Exp $ */
- 
- /*
-  * Copyright (c) 1990-1997 Sam Leffler
-@@ -81,10 +81,12 @@ extern void _TIFFFax3fillruns(unsigned char*, uint32*, uint32*, uint32);
- #define S_MakeUp   11
- #define S_EOL      12
- 
-+/* WARNING: do not change the layout of this structure as the Halyfax software */
-+/* really depends on it. See http://bugzilla.maptools.org/show_bug.cgi?id=2636 */
- typedef struct {                /* state table entry */
- 	unsigned char State;    /* see above */
- 	unsigned char Width;    /* width of code in bits */
--	uint16 Param;           /* unsigned 16-bit run length in bits */
-+	uint32 Param;           /* unsigned 32-bit run length in bits (holds on 16 bit actually, but cannot be changed. See above warning) */
- } TIFFFaxTabEnt;
- 
- extern const TIFFFaxTabEnt TIFFFaxMainTable[];
-From c7153361a4041260719b340f73f2f76b0969235c Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Tue, 20 Dec 2016 17:28:17 +0000
-Subject: [PATCH] * tools/tiff2pdf.c: avoid potential heap-based overflow in
- t2p_readwrite_pdf_image_tile(). Fixes
- http://bugzilla.maptools.org/show_bug.cgi?id=2640
-
----
- ChangeLog        | 6 ++++++
- tools/tiff2pdf.c | 2 +-
- 2 files changed, 7 insertions(+), 1 deletion(-)
-
-diff --git a/ChangeLog b/ChangeLog
-index 6be3602..91ba4e6 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,3 +1,9 @@
-+2016-12-20 Even Rouault <even.rouault at spatialys.com>
-+
-+	* tools/tiff2pdf.c: avoid potential heap-based overflow in
-+	t2p_readwrite_pdf_image_tile().
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2640
-+
- 2016-12-13 Even Rouault <even.rouault at spatialys.com>
- 
- 	* libtiff/tif_fax3.h: revert change done on 2016-01-09 that made
-diff --git a/tools/tiff2pdf.c b/tools/tiff2pdf.c
-index 47d7629..db196e0 100644
---- a/tools/tiff2pdf.c
-+++ b/tools/tiff2pdf.c
-@@ -2895,7 +2895,7 @@ tsize_t t2p_readwrite_pdf_image_tile(T2P
- 				return(0);
- 			}
- 			if(TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt) != 0) {
--				if (count >= 4) {
-+				if (count > 4) {
-                     /* Ignore EOI marker of JpegTables */
- 					_TIFFmemcpy(buffer, jpt, count - 2);
- 					bufferoffset += count - 2;
-From 5c080298d59efa53264d7248bbe3a04660db6ef7 Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Wed, 11 Jan 2017 19:25:44 +0000
-Subject: [PATCH] * tools/tiffcp.c: error out cleanly in cpContig2SeparateByRow
- and cpSeparate2ContigByRow if BitsPerSample != 8 to avoid heap based
- overflow. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2656 and
- http://bugzilla.maptools.org/show_bug.cgi?id=2657
-
----
- ChangeLog      |  7 +++++++
- tools/tiffcp.c | 24 ++++++++++++++++++++++--
- 2 files changed, 29 insertions(+), 2 deletions(-)
-
-diff --git a/ChangeLog b/ChangeLog
-index f78cad0..064f25b 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,3 +1,10 @@
-+2017-01-11 Even Rouault <even.rouault at spatialys.com>
-+
-+	* tools/tiffcp.c: error out cleanly in cpContig2SeparateByRow and
-+	cpSeparate2ContigByRow if BitsPerSample != 8 to avoid heap based overflow.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2656 and
-+	http://bugzilla.maptools.org/show_bug.cgi?id=2657
-+
- 2016-12-20 Even Rouault <even.rouault at spatialys.com>
- 
- 	* tools/tiff2pdf.c: avoid potential heap-based overflow in
-diff --git a/tools/tiffcp.c b/tools/tiffcp.c
-index bdf754c..8bbcd52 100644
---- a/tools/tiffcp.c
-+++ b/tools/tiffcp.c
-@@ -591,7 +591,7 @@ static	copyFunc pickCopyFunc(TIFF*, TIFF*, uint16, uint16);
- static int
- tiffcp(TIFF* in, TIFF* out)
- {
--	uint16 bitspersample, samplesperpixel = 1;
-+	uint16 bitspersample = 1, samplesperpixel = 1;
- 	uint16 input_compression, input_photometric = PHOTOMETRIC_MINISBLACK;
- 	copyFunc cf;
- 	uint32 width, length;
-@@ -1067,6 +1067,16 @@ DECLAREcpFunc(cpContig2SeparateByRow)
- 	register uint32 n;
- 	uint32 row;
- 	tsample_t s;
-+        uint16 bps = 0;
-+
-+        (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
-+        if( bps != 8 )
-+        {
-+            TIFFError(TIFFFileName(in),
-+                      "Error, can only handle BitsPerSample=8 in %s",
-+                      "cpContig2SeparateByRow");
-+            return 0;
-+        }
- 
- 	inbuf = _TIFFmalloc(scanlinesizein);
- 	outbuf = _TIFFmalloc(scanlinesizeout);
-@@ -1120,6 +1130,16 @@ DECLAREcpFunc(cpSeparate2ContigByRow)
- 	register uint32 n;
- 	uint32 row;
- 	tsample_t s;
-+        uint16 bps = 0;
-+
-+        (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
-+        if( bps != 8 )
-+        {
-+            TIFFError(TIFFFileName(in),
-+                      "Error, can only handle BitsPerSample=8 in %s",
-+                      "cpSeparate2ContigByRow");
-+            return 0;
-+        }
- 
- 	inbuf = _TIFFmalloc(scanlinesizein);
- 	outbuf = _TIFFmalloc(scanlinesizeout);
-@@ -1784,7 +1804,7 @@ pickCopyFunc(TIFF* in, TIFF* out, uint16 bitspersample, uint16 samplesperpixel)
- 	uint32 w, l, tw, tl;
- 	int bychunk;
- 
--	(void) TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv);
-+	(void) TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &shortv);
- 	if (shortv != config && bitspersample != 8 && samplesperpixel > 1) {
- 		fprintf(stderr,
- 		    "%s: Cannot handle different planar configuration w/ bits/sample != 8\n",
-From 47f2fb61a3a64667bce1a8398a8fcb1b348ff122 Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Wed, 11 Jan 2017 12:15:01 +0000
-Subject: [PATCH] * libtiff/tif_jpeg.c: avoid integer division by zero in
- JPEGSetupEncode() when horizontal or vertical sampling is set to 0. Fixes
- http://bugzilla.maptools.org/show_bug.cgi?id=2653
-
----
- ChangeLog          | 6 ++++++
- libtiff/tif_jpeg.c | 7 +++++++
- 2 files changed, 13 insertions(+)
-
-diff --git a/ChangeLog b/ChangeLog
-index c82bc76..a7208f5 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,11 @@
- 2017-01-11 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tif_jpeg.c: avoid integer division by zero in
-+	JPEGSetupEncode() when horizontal or vertical sampling is set to 0.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2653
-+
-+2017-01-11 Even Rouault <even.rouault at spatialys.com>
-+
- 	* tools/tiffcp.c: error out cleanly in cpContig2SeparateByRow and
- 	cpSeparate2ContigByRow if BitsPerSample != 8 to avoid heap based overflow.
- 	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2656 and
-diff --git a/libtiff/tif_jpeg.c b/libtiff/tif_jpeg.c
-index 38595f9..6c17c38 100644
---- a/libtiff/tif_jpeg.c
-+++ b/libtiff/tif_jpeg.c
-@@ -1626,6 +1626,13 @@ JPEGSetupEncode(TIFF* tif)
- 	case PHOTOMETRIC_YCBCR:
- 		sp->h_sampling = td->td_ycbcrsubsampling[0];
- 		sp->v_sampling = td->td_ycbcrsubsampling[1];
-+                if( sp->h_sampling == 0 || sp->v_sampling == 0 )
-+                {
-+                    TIFFErrorExt(tif->tif_clientdata, module,
-+                            "Invalig horizontal/vertical sampling value");
-+                    return (0);
-+                }
-+
- 		/*
- 		 * A ReferenceBlackWhite field *must* be present since the
- 		 * default value is inappropriate for YCbCr.  Fill in the
-From 3cfd62d77c2a7e147a05bd678524c345fa9c2bb8 Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Wed, 11 Jan 2017 13:28:01 +0000
-Subject: [PATCH] * libtiff/tif_dirread.c: avoid division by floating point 0
- in TIFFReadDirEntryCheckedRational() and TIFFReadDirEntryCheckedSrational(),
- and return 0 in that case (instead of infinity as before presumably)
- Apparently some sanitizers do not like those divisions by zero. Fixes
- http://bugzilla.maptools.org/show_bug.cgi?id=2644
-
----
- ChangeLog             |  8 ++++++++
- libtiff/tif_dirread.c | 10 ++++++++--
- 2 files changed, 16 insertions(+), 2 deletions(-)
-
-diff --git a/ChangeLog b/ChangeLog
-index 6a752cd..722a405 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,13 @@
- 2017-01-11 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tif_dirread.c: avoid division by floating point 0 in
-+	TIFFReadDirEntryCheckedRational() and TIFFReadDirEntryCheckedSrational(),
-+	and return 0 in that case (instead of infinity as before presumably)
-+	Apparently some sanitizers do not like those divisions by zero.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2644
-+
-+2017-01-11 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_jpeg.c: avoid integer division by zero in
- 	JPEGSetupEncode() when horizontal or vertical sampling is set to 0.
- 	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2653
-diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c
-index 570d0c3..8a1e42a 100644
---- a/libtiff/tif_dirread.c
-+++ b/libtiff/tif_dirread.c
-@@ -2872,7 +2872,10 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFD
- 		m.l = direntry->tdir_offset.toff_long8;
- 	if (tif->tif_flags&TIFF_SWAB)
- 		TIFFSwabArrayOfLong(m.i,2);
--	if (m.i[0]==0)
-+        /* Not completely sure what we should do when m.i[1]==0, but some */
-+        /* sanitizers do not like division by 0.0: */
-+        /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */
-+	if (m.i[0]==0 || m.i[1]==0)
- 		*value=0.0;
- 	else
- 		*value=(double)m.i[0]/(double)m.i[1];
-@@ -2900,7 +2903,10 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFF
- 		m.l=direntry->tdir_offset.toff_long8;
- 	if (tif->tif_flags&TIFF_SWAB)
- 		TIFFSwabArrayOfLong(m.i,2);
--	if ((int32)m.i[0]==0)
-+        /* Not completely sure what we should do when m.i[1]==0, but some */
-+        /* sanitizers do not like division by 0.0: */
-+        /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */
-+	if ((int32)m.i[0]==0 || m.i[1]==0)
- 		*value=0.0;
- 	else
- 		*value=(double)((int32)m.i[0])/(double)m.i[1];
-From 3144e57770c1e4d26520d8abee750f8ac8b75490 Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Wed, 11 Jan 2017 16:09:02 +0000
-Subject: [PATCH] * libtiff/tif_dir.c, tif_dirread.c, tif_dirwrite.c: implement
- various clampings of double to other data types to avoid undefined behaviour
- if the output range isn't big enough to hold the input value. Fixes
- http://bugzilla.maptools.org/show_bug.cgi?id=2643
- http://bugzilla.maptools.org/show_bug.cgi?id=2642
- http://bugzilla.maptools.org/show_bug.cgi?id=2646
- http://bugzilla.maptools.org/show_bug.cgi?id=2647
-
----
- ChangeLog              | 10 ++++++
- libtiff/tif_dir.c      | 18 +++++++---
- libtiff/tif_dirread.c  | 10 +++++-
- libtiff/tif_dirwrite.c | 90 ++++++++++++++++++++++++++++++++++++++++++++------
- 4 files changed, 113 insertions(+), 15 deletions(-)
-
-diff --git a/ChangeLog b/ChangeLog
-index 722a405..6517640 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,15 @@
- 2017-01-11 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tif_dir.c, tif_dirread.c, tif_dirwrite.c: implement various clampings
-+	of double to other data types to avoid undefined behaviour if the output range
-+	isn't big enough to hold the input value.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2643
-+	http://bugzilla.maptools.org/show_bug.cgi?id=2642
-+	http://bugzilla.maptools.org/show_bug.cgi?id=2646
-+	http://bugzilla.maptools.org/show_bug.cgi?id=2647
-+
-+2017-01-11 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_dirread.c: avoid division by floating point 0 in
- 	TIFFReadDirEntryCheckedRational() and TIFFReadDirEntryCheckedSrational(),
- 	and return 0 in that case (instead of infinity as before presumably)
-diff --git a/libtiff/tif_dir.c b/libtiff/tif_dir.c
-index 68a55af..a04d28f 100644
---- a/libtiff/tif_dir.c
-+++ b/libtiff/tif_dir.c
-@@ -31,6 +31,7 @@
-  * (and also some miscellaneous stuff)
-  */
- #include "tiffiop.h"
-+#include <float.h>
- 
- /*
-  * These are used in the backwards compatibility code...
-@@ -154,6 +155,15 @@ checkInkNamesString(TIFF* tif, uint32 slen, const char* s)
- 	return (0);
- }
- 
-+static float TIFFClampDoubleToFloat( double val )
-+{
-+    if( val > FLT_MAX )
-+        return FLT_MAX;
-+    if( val < -FLT_MAX )
-+        return -FLT_MAX;
-+    return (float)val;
-+}
-+
- static int
- _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
- {
-@@ -312,13 +322,13 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
-         dblval = va_arg(ap, double);
-         if( dblval < 0 )
-             goto badvaluedouble;
--		td->td_xresolution = (float) dblval;
-+		td->td_xresolution = TIFFClampDoubleToFloat( dblval );
- 		break;
- 	case TIFFTAG_YRESOLUTION:
-         dblval = va_arg(ap, double);
-         if( dblval < 0 )
-             goto badvaluedouble;
--		td->td_yresolution = (float) dblval;
-+		td->td_yresolution = TIFFClampDoubleToFloat( dblval );
- 		break;
- 	case TIFFTAG_PLANARCONFIG:
- 		v = (uint16) va_arg(ap, uint16_vap);
-@@ -327,10 +337,10 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
- 		td->td_planarconfig = (uint16) v;
- 		break;
- 	case TIFFTAG_XPOSITION:
--		td->td_xposition = (float) va_arg(ap, double);
-+		td->td_xposition = TIFFClampDoubleToFloat( va_arg(ap, double) );
- 		break;
- 	case TIFFTAG_YPOSITION:
--		td->td_yposition = (float) va_arg(ap, double);
-+		td->td_yposition = TIFFClampDoubleToFloat( va_arg(ap, double) );
- 		break;
- 	case TIFFTAG_RESOLUTIONUNIT:
- 		v = (uint16) va_arg(ap, uint16_vap);
-diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c
-index 8a1e42a..77b0f37 100644
---- a/libtiff/tif_dirread.c
-+++ b/libtiff/tif_dirread.c
-@@ -40,6 +40,7 @@
-  */
- 
- #include "tiffiop.h"
-+#include <float.h>
- 
- #define IGNORE 0          /* tag placeholder used below */
- #define FAILED_FII    ((uint32) -1)
-@@ -2406,7 +2407,14 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryFloatArray(TIFF* tif, TIFFDirEnt
- 				ma=(double*)origdata;
- 				mb=data;
- 				for (n=0; n<count; n++)
--					*mb++=(float)(*ma++);
-+                                {
-+                                    double val = *ma++;
-+                                    if( val > FLT_MAX )
-+                                        val = FLT_MAX;
-+                                    else if( val < -FLT_MAX )
-+                                        val = -FLT_MAX;
-+                                    *mb++=(float)val;
-+                                }
- 			}
- 			break;
- 	}
-diff --git a/libtiff/tif_dirwrite.c b/libtiff/tif_dirwrite.c
-index c9e871b..2967da5 100644
---- a/libtiff/tif_dirwrite.c
-+++ b/libtiff/tif_dirwrite.c
-@@ -30,6 +30,7 @@
-  * Directory Write Support Routines.
-  */
- #include "tiffiop.h"
-+#include <float.h>
- 
- #ifdef HAVE_IEEEFP
- #define TIFFCvtNativeToIEEEFloat(tif, n, fp)
-@@ -939,6 +940,69 @@ TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff)
- 	return(0);
- }
- 
-+static float TIFFClampDoubleToFloat( double val )
-+{
-+    if( val > FLT_MAX )
-+        return FLT_MAX;
-+    if( val < -FLT_MAX )
-+        return -FLT_MAX;
-+    return (float)val;
-+}
-+
-+static int8 TIFFClampDoubleToInt8( double val )
-+{
-+    if( val > 127 )
-+        return 127;
-+    if( val < -128 || val != val )
-+        return -128;
-+    return (int8)val;
-+}
-+
-+static int16 TIFFClampDoubleToInt16( double val )
-+{
-+    if( val > 32767 )
-+        return 32767;
-+    if( val < -32768 || val != val )
-+        return -32768;
-+    return (int16)val;
-+}
-+
-+static int32 TIFFClampDoubleToInt32( double val )
-+{
-+    if( val > 0x7FFFFFFF )
-+        return 0x7FFFFFFF;
-+    if( val < -0x7FFFFFFF-1 || val != val )
-+        return -0x7FFFFFFF-1;
-+    return (int32)val;
-+}
-+
-+static uint8 TIFFClampDoubleToUInt8( double val )
-+{
-+    if( val < 0 )
-+        return 0;
-+    if( val > 255 || val != val )
-+        return 255;
-+    return (uint8)val;
-+}
-+
-+static uint16 TIFFClampDoubleToUInt16( double val )
-+{
-+    if( val < 0 )
-+        return 0;
-+    if( val > 65535 || val != val )
-+        return 65535;
-+    return (uint16)val;
-+}
-+
-+static uint32 TIFFClampDoubleToUInt32( double val )
-+{
-+    if( val < 0 )
-+        return 0;
-+    if( val > 0xFFFFFFFFU || val != val )
-+        return 0xFFFFFFFFU;
-+    return (uint32)val;
-+}
-+
- static int
- TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
- {
-@@ -959,7 +1023,7 @@ TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* di
- 			if (tif->tif_dir.td_bitspersample<=32)
- 			{
- 				for (i = 0; i < count; ++i)
--					((float*)conv)[i] = (float)value[i];
-+					((float*)conv)[i] = TIFFClampDoubleToFloat(value[i]);
- 				ok = TIFFWriteDirectoryTagFloatArray(tif,ndir,dir,tag,count,(float*)conv);
- 			}
- 			else
-@@ -971,19 +1035,19 @@ TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* di
- 			if (tif->tif_dir.td_bitspersample<=8)
- 			{
- 				for (i = 0; i < count; ++i)
--					((int8*)conv)[i] = (int8)value[i];
-+					((int8*)conv)[i] = TIFFClampDoubleToInt8(value[i]);
- 				ok = TIFFWriteDirectoryTagSbyteArray(tif,ndir,dir,tag,count,(int8*)conv);
- 			}
- 			else if (tif->tif_dir.td_bitspersample<=16)
- 			{
- 				for (i = 0; i < count; ++i)
--					((int16*)conv)[i] = (int16)value[i];
-+					((int16*)conv)[i] = TIFFClampDoubleToInt16(value[i]);
- 				ok = TIFFWriteDirectoryTagSshortArray(tif,ndir,dir,tag,count,(int16*)conv);
- 			}
- 			else
- 			{
- 				for (i = 0; i < count; ++i)
--					((int32*)conv)[i] = (int32)value[i];
-+					((int32*)conv)[i] = TIFFClampDoubleToInt32(value[i]);
- 				ok = TIFFWriteDirectoryTagSlongArray(tif,ndir,dir,tag,count,(int32*)conv);
- 			}
- 			break;
-@@ -991,19 +1055,19 @@ TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* di
- 			if (tif->tif_dir.td_bitspersample<=8)
- 			{
- 				for (i = 0; i < count; ++i)
--					((uint8*)conv)[i] = (uint8)value[i];
-+					((uint8*)conv)[i] = TIFFClampDoubleToUInt8(value[i]);
- 				ok = TIFFWriteDirectoryTagByteArray(tif,ndir,dir,tag,count,(uint8*)conv);
- 			}
- 			else if (tif->tif_dir.td_bitspersample<=16)
- 			{
- 				for (i = 0; i < count; ++i)
--					((uint16*)conv)[i] = (uint16)value[i];
-+					((uint16*)conv)[i] = TIFFClampDoubleToUInt16(value[i]);
- 				ok = TIFFWriteDirectoryTagShortArray(tif,ndir,dir,tag,count,(uint16*)conv);
- 			}
- 			else
- 			{
- 				for (i = 0; i < count; ++i)
--					((uint32*)conv)[i] = (uint32)value[i];
-+					((uint32*)conv)[i] = TIFFClampDoubleToUInt32(value[i]);
- 				ok = TIFFWriteDirectoryTagLongArray(tif,ndir,dir,tag,count,(uint32*)conv);
- 			}
- 			break;
-@@ -2094,6 +2094,7 @@ TIFFWriteDirectoryTagCheckedSlong8Array(
- static int
- TIFFWriteDirectoryTagCheckedRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
- {
-+	static const char module[] = "TIFFWriteDirectoryTagCheckedRational";
- 	uint32 m[2];
- 	assert(value>=0.0);
- 	assert(sizeof(uint32)==4);
-@@ -2102,7 +2102,12 @@ TIFFWriteDirectoryTagCheckedRational(TIF
- 		m[0]=0;
- 		m[1]=1;
- 	}
--	else if (value==(double)(uint32)value)
-+	else if( value != value )
-+	{
-+		TIFFErrorExt(tif->tif_clientdata,module,"Not-a-number value is illegal");
-+		return 0;
-+	}
-+	else if (value <= 0xFFFFFFFFU && value==(double)(uint32)value)
- 	{
- 		m[0]=(uint32)value;
- 		m[1]=1;
-@@ -2143,12 +2212,13 @@ TIFFWriteDirectoryTagCheckedRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry*
- 	}
- 	for (na=value, nb=m, nc=0; nc<count; na++, nb+=2, nc++)
- 	{
--		if (*na<=0.0)
-+		if (*na<=0.0 || *na != *na)
- 		{
- 			nb[0]=0;
- 			nb[1]=1;
- 		}
--		else if (*na==(float)(uint32)(*na))
-+		else if (*na >= 0 && *na <= (float)0xFFFFFFFFU &&
-+                         *na==(float)(uint32)(*na))
- 		{
- 			nb[0]=(uint32)(*na);
- 			nb[1]=1;
-From 0a76a8c765c7b8327c59646284fa78c3c27e5490 Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Wed, 11 Jan 2017 16:13:50 +0000
-Subject: [PATCH] * libtiff/tif_jpeg.c: validate BitsPerSample in
- JPEGSetupEncode() to avoid undefined behaviour caused by invalid shift
- exponent. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2648
-
----
- ChangeLog          | 6 ++++++
- libtiff/tif_jpeg.c | 7 +++++++
- 2 files changed, 13 insertions(+)
-
-diff --git a/ChangeLog b/ChangeLog
-index 6517640..8e202a2 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,11 @@
- 2017-01-11 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tif_jpeg.c: validate BitsPerSample in JPEGSetupEncode() to avoid
-+	undefined behaviour caused by invalid shift exponent.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2648
-+
-+2017-01-11 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_dir.c, tif_dirread.c, tif_dirwrite.c: implement various clampings
- 	of double to other data types to avoid undefined behaviour if the output range
- 	isn't big enough to hold the input value.
-diff --git a/libtiff/tif_jpeg.c b/libtiff/tif_jpeg.c
-index 6c17c38..192989a 100644
---- a/libtiff/tif_jpeg.c
-+++ b/libtiff/tif_jpeg.c
-@@ -1632,6 +1632,13 @@ JPEGSetupEncode(TIFF* tif)
-                             "Invalig horizontal/vertical sampling value");
-                     return (0);
-                 }
-+                if( td->td_bitspersample > 16 )
-+                {
-+                    TIFFErrorExt(tif->tif_clientdata, module,
-+                                 "BitsPerSample %d not allowed for JPEG",
-+                                 td->td_bitspersample);
-+                    return (0);
-+                }
- 
- 		/*
- 		 * A ReferenceBlackWhite field *must* be present since the
-From 66e7bd59520996740e4df5495a830b42fae48bc4 Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Wed, 11 Jan 2017 16:33:34 +0000
-Subject: [PATCH] * libtiff/tif_read.c: avoid potential undefined behaviour on
- signed integer addition in TIFFReadRawStrip1() in isMapped() case. Fixes
- http://bugzilla.maptools.org/show_bug.cgi?id=2650
-
----
- ChangeLog          |  6 ++++++
- libtiff/tif_read.c | 27 ++++++++++++++++++---------
- 2 files changed, 24 insertions(+), 9 deletions(-)
-
-diff --git a/ChangeLog b/ChangeLog
-index 8e202a2..3e31464 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,11 @@
- 2017-01-11 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tif_read.c: avoid potential undefined behaviour on signed integer
-+	addition in TIFFReadRawStrip1() in isMapped() case.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2650
-+
-+2017-01-11 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_jpeg.c: validate BitsPerSample in JPEGSetupEncode() to avoid
- 	undefined behaviour caused by invalid shift exponent.
- 	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2648
-diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
-index 52bbf50..b7aacbd 100644
---- a/libtiff/tif_read.c
-+++ b/libtiff/tif_read.c
-@@ -420,16 +420,25 @@ TIFFReadRawStrip1(TIFF* tif, uint32 strip, void* buf, tmsize_t size,
- 			return ((tmsize_t)(-1));
- 		}
- 	} else {
--		tmsize_t ma,mb;
-+		tmsize_t ma;
- 		tmsize_t n;
--		ma=(tmsize_t)td->td_stripoffset[strip];
--		mb=ma+size;
--		if ((td->td_stripoffset[strip] > (uint64)TIFF_TMSIZE_T_MAX)||(ma>tif->tif_size))
--			n=0;
--		else if ((mb<ma)||(mb<size)||(mb>tif->tif_size))
--			n=tif->tif_size-ma;
--		else
--			n=size;
-+		if ((td->td_stripoffset[strip] > (uint64)TIFF_TMSIZE_T_MAX)||
-+                    ((ma=(tmsize_t)td->td_stripoffset[strip])>tif->tif_size))
-+                {
-+                    n=0;
-+                }
-+                else if( ma > TIFF_TMSIZE_T_MAX - size )
-+                {
-+                    n=0;
-+                }
-+                else
-+                {
-+                    tmsize_t mb=ma+size;
-+                    if (mb>tif->tif_size)
-+                            n=tif->tif_size-ma;
-+                    else
-+                            n=size;
-+                }
- 		if (n!=size) {
- #if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
- 			TIFFErrorExt(tif->tif_clientdata, module,
-From 48780b4fcc425cddc4ef8ffdf536f96a0d1b313b Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Wed, 11 Jan 2017 16:38:26 +0000
-Subject: [PATCH] =?UTF-8?q?*=20libtiff/tif=5Fgetimage.c:=20add=20explicit?=
- =?UTF-8?q?=20uint32=20cast=20in=20putagreytile=20to=20avoid=20UndefinedBe?=
- =?UTF-8?q?haviorSanitizer=20warning.=20Patch=20by=20Nicol=C3=A1s=20Pe?=
- =?UTF-8?q?=C3=B1a.=20Fixes=20http://bugzilla.maptools.org/show=5Fbug.cgi?=
- =?UTF-8?q?=3Fid=3D2658?=
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
----
- ChangeLog              | 7 +++++++
- libtiff/tif_getimage.c | 2 +-
- 2 files changed, 8 insertions(+), 1 deletion(-)
-
-diff --git a/ChangeLog b/ChangeLog
-index 3e31464..6a342e5 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,12 @@
- 2017-01-11 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tif_getimage.c: add explicit uint32 cast in putagreytile to
-+	avoid UndefinedBehaviorSanitizer warning.
-+	Patch by Nicolás Peña.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2658
-+
-+2017-01-11 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_read.c: avoid potential undefined behaviour on signed integer
- 	addition in TIFFReadRawStrip1() in isMapped() case.
- 	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2650
-diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
-index fed31f1..2fa1775 100644
---- a/libtiff/tif_getimage.c
-+++ b/libtiff/tif_getimage.c
-@@ -1305,7 +1305,7 @@ DECLAREContigPutFunc(putagreytile)
-     while (h-- > 0) {
- 	for (x = w; x-- > 0;)
-         {
--            *cp++ = BWmap[*pp][0] & (*(pp+1) << 24 | ~A1);
-+            *cp++ = BWmap[*pp][0] & ((uint32)*(pp+1) << 24 | ~A1);
-             pp += samplesperpixel;
-         }
- 	cp += toskew;
-From d60332057b9575ada4f264489582b13e30137be1 Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Wed, 11 Jan 2017 19:02:49 +0000
-Subject: [PATCH] * libtiff/tiffiop.h, tif_unix.c, tif_win32.c, tif_vms.c: add
- _TIFFcalloc()
-
-* libtiff/tif_read.c: TIFFReadBufferSetup(): use _TIFFcalloc() to zero
-initialize tif_rawdata.
-Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2651
----
- ChangeLog           | 8 ++++++++
- libtiff/tif_read.c  | 4 +++-
- libtiff/tif_unix.c  | 8 ++++++++
- libtiff/tif_vms.c   | 8 ++++++++
- libtiff/tif_win32.c | 8 ++++++++
- libtiff/tiffio.h    | 1 +
- 6 files changed, 36 insertions(+), 1 deletion(-)
-
-diff --git a/ChangeLog b/ChangeLog
-index 6a342e5..abd75d7 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,5 +1,13 @@
- 2017-01-11 Even Rouault <even.rouault at spatialys.com>
- 
-+	* libtiff/tiffiop.h, tif_unix.c, tif_win32.c, tif_vms.c: add _TIFFcalloc()
-+
-+	* libtiff/tif_read.c: TIFFReadBufferSetup(): use _TIFFcalloc() to zero
-+	initialize tif_rawdata.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2651
-+
-+2017-01-11 Even Rouault <even.rouault at spatialys.com>
-+
- 	* libtiff/tif_getimage.c: add explicit uint32 cast in putagreytile to
- 	avoid UndefinedBehaviorSanitizer warning.
- 	Patch by Nicolás Peña.
-diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
-index 277fdd6..4535ccb 100644
---- a/libtiff/tif_read.c
-+++ b/libtiff/tif_read.c
-@@ -985,7 +985,9 @@ TIFFReadBufferSetup(TIFF* tif, void* bp, tmsize_t size)
- 				 "Invalid buffer size");
- 		    return (0);
- 		}
--		tif->tif_rawdata = (uint8*) _TIFFmalloc(tif->tif_rawdatasize);
-+		/* Initialize to zero to avoid uninitialized buffers in case of */
-+                /* short reads (http://bugzilla.maptools.org/show_bug.cgi?id=2651) */
-+		tif->tif_rawdata = (uint8*) _TIFFcalloc(1, tif->tif_rawdatasize);
- 		tif->tif_flags |= TIFF_MYBUFFER;
- 	}
- 	if (tif->tif_rawdata == NULL) {
-diff --git a/libtiff/tif_unix.c b/libtiff/tif_unix.c
-index 7c7bc96..89dd32e 100644
---- a/libtiff/tif_unix.c
-+++ b/libtiff/tif_unix.c
-@@ -316,6 +316,14 @@ _TIFFmalloc(tmsize_t s)
- 	return (malloc((size_t) s));
- }
- 
-+void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz)
-+{
-+    if( nmemb == 0 || siz == 0 )
-+        return ((void *) NULL);
-+
-+    return calloc((size_t) nmemb, (size_t)siz);
-+}
-+
- void
- _TIFFfree(void* p)
- {
-diff --git a/libtiff/tif_win32.c b/libtiff/tif_win32.c
-index d730b3a..3e9001b 100644
---- a/libtiff/tif_win32.c
-+++ b/libtiff/tif_win32.c
-@@ -360,6 +360,14 @@ _TIFFmalloc(tmsize_t s)
- 	return (malloc((size_t) s));
- }
- 
-+void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz)
-+{
-+    if( nmemb == 0 || siz == 0 )
-+        return ((void *) NULL);
-+
-+    return calloc((size_t) nmemb, (size_t)siz);
-+}
-+
- void
- _TIFFfree(void* p)
- {
-diff --git a/libtiff/tiffio.h b/libtiff/tiffio.h
-index 732da17..fbd9171 100644
---- a/libtiff/tiffio.h
-+++ b/libtiff/tiffio.h
-@@ -293,6 +293,7 @@ extern TIFFCodec* TIFFGetConfiguredCODECs(void);
-  */
- 
- extern void* _TIFFmalloc(tmsize_t s);
-+extern void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz);
- extern void* _TIFFrealloc(void* p, tmsize_t s);
- extern void _TIFFmemset(void* p, int v, tmsize_t c);
- extern void _TIFFmemcpy(void* d, const void* s, tmsize_t c);
-From 8283e4d1b7e53340684d12932880cbcbaf23a8c1 Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Thu, 12 Jan 2017 17:43:25 +0000
-Subject: [PATCH] =?UTF-8?q?*=20libtiff/tif=5Fojpeg.c:=20fix=20leak=20in=20?=
- =?UTF-8?q?OJPEGReadHeaderInfoSecTablesAcTable=20when=20read=20fails.=20Pa?=
- =?UTF-8?q?tch=20by=20Nicol=C3=A1s=20Pe=C3=B1a.=20Fixes=20http://bugzilla.?=
- =?UTF-8?q?maptools.org/show=5Fbug.cgi=3Fid=3D2659?=
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
----
- ChangeLog           | 7 +++++++
- libtiff/tif_ojpeg.c | 3 +++
- 2 files changed, 10 insertions(+)
-
-diff --git a/ChangeLog b/ChangeLog
-index 6e6f3b0..12e0370 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,3 +1,10 @@
-+2017-01-12 Even Rouault <even.rouault at spatialys.com>
-+
-+	* libtiff/tif_ojpeg.c: fix leak in OJPEGReadHeaderInfoSecTablesAcTable
-+	when read fails.
-+	Patch by Nicolás Peña.
-+	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2659
-+
- 2017-01-11 Even Rouault <even.rouault at spatialys.com>
- 
- 	* libtiff/tiffiop.h, tif_unix.c, tif_win32.c, tif_vms.c: add _TIFFcalloc()
-diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
-index f19e8fd..b92f0eb 100644
---- a/libtiff/tif_ojpeg.c
-+++ b/libtiff/tif_ojpeg.c
-@@ -1918,7 +1918,10 @@ OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif)
- 				rb[sizeof(uint32)+5+n]=o[n];
- 			p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q);
- 			if (p!=q)
-+                        {
-+                                _TIFFfree(rb);
- 				return(0);
-+                        }
- 			sp->actable[m]=rb;
- 			sp->sos_tda[m]=(sp->sos_tda[m]|m);
- 		}
-From 2ea32f7372b65c24b2816f11c04bf59b5090d05b Mon Sep 17 00:00:00 2001
-From: erouault <erouault>
-Date: Thu, 12 Jan 2017 19:23:20 +0000
-Subject: [PATCH] * libtiff/tif_ojpeg.c: fix leak in
- OJPEGReadHeaderInfoSecTablesQTable, OJPEGReadHeaderInfoSecTablesDcTable and
- OJPEGReadHeaderInfoSecTablesAcTable
-
----
- ChangeLog           | 3 ++-
- libtiff/tif_ojpeg.c | 6 ++++++
- 2 files changed, 8 insertions(+), 1 deletion(-)
-
-diff --git a/ChangeLog b/ChangeLog
-index 12e0370..cd2fa17 100644
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,6 +1,7 @@
- 2017-01-12 Even Rouault <even.rouault at spatialys.com>
- 
--	* libtiff/tif_ojpeg.c: fix leak in OJPEGReadHeaderInfoSecTablesAcTable
-+	* libtiff/tif_ojpeg.c: fix leak in OJPEGReadHeaderInfoSecTablesQTable,
-+	OJPEGReadHeaderInfoSecTablesDcTable and OJPEGReadHeaderInfoSecTablesAcTable
- 	when read fails.
- 	Patch by Nicolás Peña.
- 	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2659
-diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
-index b92f0eb..5f6c684 100644
---- a/libtiff/tif_ojpeg.c
-+++ b/libtiff/tif_ojpeg.c
-@@ -1790,7 +1790,10 @@ OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif)
- 			TIFFSeekFile(tif,sp->qtable_offset[m],SEEK_SET); 
- 			p=(uint32)TIFFReadFile(tif,&ob[sizeof(uint32)+5],64);
- 			if (p!=64)
-+                        {
-+                                _TIFFfree(ob);
- 				return(0);
-+                        }
- 			sp->qtable[m]=ob;
- 			sp->sof_tq[m]=m;
- 		}
-@@ -1854,7 +1857,10 @@ OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif)
- 				rb[sizeof(uint32)+5+n]=o[n];
- 			p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q);
- 			if (p!=q)
-+                        {
-+                                _TIFFfree(rb);
- 				return(0);
-+                        }
- 			sp->dctable[m]=rb;
- 			sp->sos_tda[m]=(m<<4);
- 		}
diff --git a/component/libtiff/tiff_4.0.8-3.debian.patch b/component/libtiff/tiff_4.0.8-3.debian.patch
new file mode 100644
index 000000000..bae998202
--- /dev/null
+++ b/component/libtiff/tiff_4.0.8-3.debian.patch
@@ -0,0 +1,747 @@
+diff -pur tiff-4.0.4/tools/tiffsplit.c tiff-4.0.4_patch/tools/tiffsplit.c
+--- tiff-4.0.4/tools/tiffsplit.c	2015-05-28 15:10:26.000000000 +0200
++++ tiff-4.0.4_patch/tools/tiffsplit.c	2016-02-12 19:15:30.532005041 +0100
+@@ -179,8 +179,9 @@ tiffcp(TIFF* in, TIFF* out)
+ 		    TIFFSetField(out, TIFFTAG_JPEGTABLES, count, table);
+ 		}
+ 	}
++	uint32 count = 0;
+         CopyField(TIFFTAG_PHOTOMETRIC, shortv);
+-	CopyField(TIFFTAG_PREDICTOR, shortv);
++	CopyField2(TIFFTAG_PREDICTOR, count, shortv);
+ 	CopyField(TIFFTAG_THRESHHOLDING, shortv);
+ 	CopyField(TIFFTAG_FILLORDER, shortv);
+ 	CopyField(TIFFTAG_ORIENTATION, shortv);
+@@ -188,7 +189,7 @@ tiffcp(TIFF* in, TIFF* out)
+ 	CopyField(TIFFTAG_MAXSAMPLEVALUE, shortv);
+ 	CopyField(TIFFTAG_XRESOLUTION, floatv);
+ 	CopyField(TIFFTAG_YRESOLUTION, floatv);
+-	CopyField(TIFFTAG_GROUP3OPTIONS, longv);
++	CopyField2(TIFFTAG_GROUP3OPTIONS, count, longv);
+ 	CopyField(TIFFTAG_GROUP4OPTIONS, longv);
+ 	CopyField(TIFFTAG_RESOLUTIONUNIT, shortv);
+ 	CopyField(TIFFTAG_PLANARCONFIG, shortv);
+From 02669064e927074819ce1ed39aba0fccaa167717 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Mon, 29 May 2017 10:12:54 +0000
+Subject: [PATCH] * libtiff/tif_color.c: TIFFYCbCrToRGBInit(): stricter
+ clamping to avoid int32 overflow in TIFFYCbCrtoRGB(). Fixes
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1844 Credit to OSS Fuzz
+
+---
+ ChangeLog           | 7 +++++++
+ libtiff/tif_color.c | 6 +++---
+ 2 files changed, 10 insertions(+), 3 deletions(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index ee8d9d08..61116596 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -1,3 +1,10 @@
++2017-05-29  Even Rouault <even.rouault at spatialys.com>
++
++	* libtiff/tif_color.c: TIFFYCbCrToRGBInit(): stricter clamping to avoid
++	int32 overflow in TIFFYCbCrtoRGB().
++	Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1844
++	Credit to OSS Fuzz
++
+ 2017-05-21  Bob Friesenhahn  <bfriesen@simple.dallas.tx.us>
+ 
+ 	* configure.ac: libtiff 4.0.8 released.
+diff --git a/libtiff/tif_color.c b/libtiff/tif_color.c
+index 055ed3b2..10a5e66e 100644
+--- a/libtiff/tif_color.c
++++ b/libtiff/tif_color.c
+@@ -275,10 +275,10 @@ TIFFYCbCrToRGBInit(TIFFYCbCrToRGB* ycbcr, float *luma, float *refBlackWhite)
+       for (i = 0, x = -128; i < 256; i++, x++) {
+ 	    int32 Cr = (int32)CLAMPw(Code2V(x, refBlackWhite[4] - 128.0F,
+ 			    refBlackWhite[5] - 128.0F, 127),
+-                            -128.0F * 64, 128.0F * 64);
++                            -128.0F * 32, 128.0F * 32);
+ 	    int32 Cb = (int32)CLAMPw(Code2V(x, refBlackWhite[2] - 128.0F,
+ 			    refBlackWhite[3] - 128.0F, 127),
+-                            -128.0F * 64, 128.0F * 64);
++                            -128.0F * 32, 128.0F * 32);
+ 
+ 	    ycbcr->Cr_r_tab[i] = (int32)((D1*Cr + ONE_HALF)>>SHIFT);
+ 	    ycbcr->Cb_b_tab[i] = (int32)((D3*Cb + ONE_HALF)>>SHIFT);
+@@ -286,7 +286,7 @@ TIFFYCbCrToRGBInit(TIFFYCbCrToRGB* ycbcr, float *luma, float *refBlackWhite)
+ 	    ycbcr->Cb_g_tab[i] = D4*Cb + ONE_HALF;
+ 	    ycbcr->Y_tab[i] =
+ 		    (int32)CLAMPw(Code2V(x + 128, refBlackWhite[0], refBlackWhite[1], 255),
+-                                  -128.0F * 64, 128.0F * 64);
++                                  -128.0F * 32, 128.0F * 32);
+       }
+     }
+ 
+From 468988860e0dae62ebbf991627c74bcbb4bd256f Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Mon, 29 May 2017 11:29:06 +0000
+Subject: [PATCH] * libtiff/tif_getimage.c: initYCbCrConversion(): stricter
+ validation for refBlackWhite coefficients values. To avoid invalid
+ float->int32 conversion (when refBlackWhite[0] == 2147483648.f) Fixes
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1907 Credit to OSS Fuzz
+
+---
+ ChangeLog              | 8 ++++++++
+ libtiff/tif_getimage.c | 2 +-
+ 2 files changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index a2ddaac2..04881ba7 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -1,5 +1,13 @@
+ 2017-05-29  Even Rouault <even.rouault at spatialys.com>
+ 
++	* libtiff/tif_getimage.c: initYCbCrConversion(): stricter validation for
++	refBlackWhite coefficients values. To avoid invalid float->int32 conversion
++	(when refBlackWhite[0] == 2147483648.f)
++	Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1907
++	Credit to OSS Fuzz
++
++2017-05-29  Even Rouault <even.rouault at spatialys.com>
++
+ 	* libtiff/tif_color.c: TIFFYCbCrToRGBInit(): stricter clamping to avoid
+ 	int32 overflow in TIFFYCbCrtoRGB().
+ 	Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1844
+diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
+index dc373abc..a209a7a7 100644
+--- a/libtiff/tif_getimage.c
++++ b/libtiff/tif_getimage.c
+@@ -2241,7 +2241,7 @@ DECLARESepPutFunc(putseparate8bitYCbCr11tile)
+ 
+ static int isInRefBlackWhiteRange(float f)
+ {
+-    return f >= (float)(-0x7FFFFFFF + 128) && f <= (float)0x7FFFFFFF;
++    return f > (float)(-0x7FFFFFFF + 128) && f < (float)0x7FFFFFFF;
+ }
+ 
+ static int
+commit 40448d58fbfad52d2dde5bd18daa30b17fe35fcd
+Author: erouault <erouault>
+Date:   Thu Jun 1 12:44:04 2017 +0000
+
+    * libtiff/tif_dirinfo.c, tif_dirread.c: add _TIFFCheckFieldIsValidForCodec(),
+    and use it in TIFFReadDirectory() so as to ignore fields whose tag is a
+    codec-specified tag but this codec is not enabled. This avoids TIFFGetField()
+    to behave differently depending on whether the codec is enabled or not, and
+    thus can avoid stack based buffer overflows in a number of TIFF utilities
+    such as tiffsplit, tiffcmp, thumbnail, etc.
+    Patch derived from 0063-Handle-properly-CODEC-specific-tags.patch
+    (http://bugzilla.maptools.org/show_bug.cgi?id=2580) by Raphaël Hertzog.
+    Fixes:
+    http://bugzilla.maptools.org/show_bug.cgi?id=2580
+    http://bugzilla.maptools.org/show_bug.cgi?id=2693
+    http://bugzilla.maptools.org/show_bug.cgi?id=2625 (CVE-2016-10095)
+    http://bugzilla.maptools.org/show_bug.cgi?id=2564 (CVE-2015-7554)
+    http://bugzilla.maptools.org/show_bug.cgi?id=2561 (CVE-2016-5318)
+    http://bugzilla.maptools.org/show_bug.cgi?id=2499 (CVE-2014-8128)
+    http://bugzilla.maptools.org/show_bug.cgi?id=2441
+    http://bugzilla.maptools.org/show_bug.cgi?id=2433
+
+diff --git a/ChangeLog b/ChangeLog
+index 04881ba7..ebd1a3c0 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -1,3 +1,23 @@
++2017-06-01  Even Rouault <even.rouault at spatialys.com>
++
++	* libtiff/tif_dirinfo.c, tif_dirread.c: add _TIFFCheckFieldIsValidForCodec(),
++	and use it in TIFFReadDirectory() so as to ignore fields whose tag is a
++	codec-specified tag but this codec is not enabled. This avoids TIFFGetField()
++	to behave differently depending on whether the codec is enabled or not, and
++	thus can avoid stack based buffer overflows in a number of TIFF utilities
++	such as tiffsplit, tiffcmp, thumbnail, etc.
++	Patch derived from 0063-Handle-properly-CODEC-specific-tags.patch
++	(http://bugzilla.maptools.org/show_bug.cgi?id=2580) by Raphaël Hertzog.
++	Fixes:
++	http://bugzilla.maptools.org/show_bug.cgi?id=2580
++	http://bugzilla.maptools.org/show_bug.cgi?id=2693
++	http://bugzilla.maptools.org/show_bug.cgi?id=2625 (CVE-2016-10095)
++	http://bugzilla.maptools.org/show_bug.cgi?id=2564 (CVE-2015-7554)
++	http://bugzilla.maptools.org/show_bug.cgi?id=2561 (CVE-2016-5318)
++	http://bugzilla.maptools.org/show_bug.cgi?id=2499 (CVE-2014-8128)
++	http://bugzilla.maptools.org/show_bug.cgi?id=2441
++	http://bugzilla.maptools.org/show_bug.cgi?id=2433
++
+ 2017-05-29  Even Rouault <even.rouault at spatialys.com>
+ 
+ 	* libtiff/tif_getimage.c: initYCbCrConversion(): stricter validation for
+diff --git a/libtiff/tif_dir.h b/libtiff/tif_dir.h
+index 6af5f3dc..5a380767 100644
+--- a/libtiff/tif_dir.h
++++ b/libtiff/tif_dir.h
+@@ -1,4 +1,4 @@
+-/* $Id: tif_dir.h,v 1.54 2011-02-18 20:53:05 fwarmerdam Exp $ */
++/* $Id: tif_dir.h,v 1.55 2017-06-01 12:44:04 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -291,6 +291,7 @@ struct _TIFFField {
+ extern int _TIFFMergeFields(TIFF*, const TIFFField[], uint32);
+ extern const TIFFField* _TIFFFindOrRegisterField(TIFF *, uint32, TIFFDataType);
+ extern  TIFFField* _TIFFCreateAnonField(TIFF *, uint32, TIFFDataType);
++extern int _TIFFCheckFieldIsValidForCodec(TIFF *tif, ttag_t tag);
+ 
+ #if defined(__cplusplus)
+ }
+diff --git a/libtiff/tif_dirinfo.c b/libtiff/tif_dirinfo.c
+index 23ad0020..4904f540 100644
+--- a/libtiff/tif_dirinfo.c
++++ b/libtiff/tif_dirinfo.c
+@@ -1,4 +1,4 @@
+-/* $Id: tif_dirinfo.c,v 1.126 2016-11-18 02:52:13 bfriesen Exp $ */
++/* $Id: tif_dirinfo.c,v 1.127 2017-06-01 12:44:04 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -956,6 +956,109 @@ TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], uint32 n)
+ 	return 0;
+ }
+ 
++int
++_TIFFCheckFieldIsValidForCodec(TIFF *tif, ttag_t tag)
++{
++	/* Filter out non-codec specific tags */
++	switch (tag) {
++	    /* Shared tags */
++	    case TIFFTAG_PREDICTOR:
++	    /* JPEG tags */
++	    case TIFFTAG_JPEGTABLES:
++	    /* OJPEG tags */
++	    case TIFFTAG_JPEGIFOFFSET:
++	    case TIFFTAG_JPEGIFBYTECOUNT:
++	    case TIFFTAG_JPEGQTABLES:
++	    case TIFFTAG_JPEGDCTABLES:
++	    case TIFFTAG_JPEGACTABLES:
++	    case TIFFTAG_JPEGPROC:
++	    case TIFFTAG_JPEGRESTARTINTERVAL:
++	    /* CCITT* */
++	    case TIFFTAG_BADFAXLINES:
++	    case TIFFTAG_CLEANFAXDATA:
++	    case TIFFTAG_CONSECUTIVEBADFAXLINES:
++	    case TIFFTAG_GROUP3OPTIONS:
++	    case TIFFTAG_GROUP4OPTIONS:
++		break;
++	    default:
++		return 1;
++	}
++	/* Check if codec specific tags are allowed for the current
++	 * compression scheme (codec) */
++	switch (tif->tif_dir.td_compression) {
++	    case COMPRESSION_LZW:
++		if (tag == TIFFTAG_PREDICTOR)
++		    return 1;
++		break;
++	    case COMPRESSION_PACKBITS:
++		/* No codec-specific tags */
++		break;
++	    case COMPRESSION_THUNDERSCAN:
++		/* No codec-specific tags */
++		break;
++	    case COMPRESSION_NEXT:
++		/* No codec-specific tags */
++		break;
++	    case COMPRESSION_JPEG:
++		if (tag == TIFFTAG_JPEGTABLES)
++		    return 1;
++		break;
++	    case COMPRESSION_OJPEG:
++		switch (tag) {
++		    case TIFFTAG_JPEGIFOFFSET:
++		    case TIFFTAG_JPEGIFBYTECOUNT:
++		    case TIFFTAG_JPEGQTABLES:
++		    case TIFFTAG_JPEGDCTABLES:
++		    case TIFFTAG_JPEGACTABLES:
++		    case TIFFTAG_JPEGPROC:
++		    case TIFFTAG_JPEGRESTARTINTERVAL:
++			return 1;
++		}
++		break;
++	    case COMPRESSION_CCITTRLE:
++	    case COMPRESSION_CCITTRLEW:
++	    case COMPRESSION_CCITTFAX3:
++	    case COMPRESSION_CCITTFAX4:
++		switch (tag) {
++		    case TIFFTAG_BADFAXLINES:
++		    case TIFFTAG_CLEANFAXDATA:
++		    case TIFFTAG_CONSECUTIVEBADFAXLINES:
++			return 1;
++		    case TIFFTAG_GROUP3OPTIONS:
++			if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX3)
++			    return 1;
++			break;
++		    case TIFFTAG_GROUP4OPTIONS:
++			if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX4)
++			    return 1;
++			break;
++		}
++		break;
++	    case COMPRESSION_JBIG:
++		/* No codec-specific tags */
++		break;
++	    case COMPRESSION_DEFLATE:
++	    case COMPRESSION_ADOBE_DEFLATE:
++		if (tag == TIFFTAG_PREDICTOR)
++		    return 1;
++		break;
++	   case COMPRESSION_PIXARLOG:
++		if (tag == TIFFTAG_PREDICTOR)
++		    return 1;
++		break;
++	    case COMPRESSION_SGILOG:
++	    case COMPRESSION_SGILOG24:
++		/* No codec-specific tags */
++		break;
++	    case COMPRESSION_LZMA:
++		if (tag == TIFFTAG_PREDICTOR)
++		    return 1;
++		break;
++
++	}
++	return 0;
++}
++
+ /* vim: set ts=8 sts=8 sw=8 noet: */
+ 
+ /*
+diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c
+index 772ebaf7..acde78b5 100644
+--- a/libtiff/tif_dirread.c
++++ b/libtiff/tif_dirread.c
+@@ -1,4 +1,4 @@
+-/* $Id: tif_dirread.c,v 1.208 2017-04-27 15:46:22 erouault Exp $ */
++/* $Id: tif_dirread.c,v 1.209 2017-06-01 12:44:04 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -3580,6 +3580,10 @@ TIFFReadDirectory(TIFF* tif)
+ 							goto bad;
+ 						dp->tdir_tag=IGNORE;
+ 						break;
++                                        default:
++                                            if( !_TIFFCheckFieldIsValidForCodec(tif, dp->tdir_tag) )
++                                                dp->tdir_tag=IGNORE;
++                                            break;
+ 				}
+ 			}
+ 		}
+From fe8d7165956b88df4837034a9161dc5fd20cf67a Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@spatialys.com>
+Date: Mon, 26 Jun 2017 15:19:59 +0000
+Subject: [PATCH] * libtiff/tif_jbig.c: fix memory leak in error code path of
+ JBIGDecode() Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2706 Reported
+ by team OWL337
+
+* libtiff/tif_jpeg.c: error out at decoding time if anticipated libjpeg
+---
+ ChangeLog          | 8 +++++++-
+ libtiff/tif_jbig.c | 1 +
+ 2 files changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index bc5096e7..ecd70534 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -1,3 +1,9 @@
++2017-06-26  Even Rouault <even.rouault at spatialys.com>
++
++	* libtiff/tif_jbig.c: fix memory leak in error code path of JBIGDecode()
++	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2706
++	Reported by team OWL337
++
+ 2017-06-01  Even Rouault <even.rouault at spatialys.com>
+ 
+ 	* libtiff/tif_dirinfo.c, tif_dirread.c: add _TIFFCheckFieldIsValidForCodec(),
+diff --git a/libtiff/tif_jbig.c b/libtiff/tif_jbig.c
+index 5f5f75e2..c75f31d9 100644
+--- a/libtiff/tif_jbig.c
++++ b/libtiff/tif_jbig.c
+@@ -94,6 +94,7 @@ static int JBIGDecode(TIFF* tif, uint8* buffer, tmsize_t size, uint16 s)
+ 			     jbg_strerror(decodeStatus)
+ #endif
+ 			     );
++		jbg_dec_free(&decoder);
+ 		return 0;
+ 	}
+ 
+From 1077fad562e03d1cad591dd10163dd80ad63ab0e Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@spatialys.com>
+Date: Fri, 30 Jun 2017 13:11:18 +0000
+Subject: [PATCH] * libtiff/tif_read.c, tiffiop.h: add a
+ _TIFFReadEncodedStripAndAllocBuffer() function, variant of
+ TIFFReadEncodedStrip() that allocates the decoded buffer only after a first
+ successful TIFFFillStrip(). This avoids excessive memory allocation on
+ corrupted files. * libtiff/tif_getimage.c: use
+ _TIFFReadEncodedStripAndAllocBuffer(). Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2708 and
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2433 . Credit to OSS
+ Fuzz
+
+---
+ ChangeLog              | 11 +++++++
+ libtiff/tif_getimage.c | 59 ++++++++++++++++++++++----------------
+ libtiff/tif_read.c     | 78 +++++++++++++++++++++++++++++++++++++++++++-------
+ libtiff/tiffiop.h      |  5 ++++
+ 4 files changed, 118 insertions(+), 35 deletions(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index c969f9e2..6f085e09 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -1,3 +1,14 @@
++2017-06-30  Even Rouault <even.rouault at spatialys.com>
++
++	* libtiff/tif_read.c, tiffiop.h: add a _TIFFReadEncodedStripAndAllocBuffer()
++	function, variant of TIFFReadEncodedStrip() that allocates the
++	decoded buffer only after a first successful TIFFFillStrip(). This avoids
++	excessive memory allocation on corrupted files.
++	* libtiff/tif_getimage.c: use _TIFFReadEncodedStripAndAllocBuffer(). 
++	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2708 and
++	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2433 .
++	Credit to OSS Fuzz
++
+ 2017-06-26  Even Rouault <even.rouault at spatialys.com>
+ 
+ 	* libtiff/tif_jbig.c: fix memory leak in error code path of JBIGDecode()
+diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
+index cee8e930..cc6e8f30 100644
+--- a/libtiff/tif_getimage.c
++++ b/libtiff/tif_getimage.c
+@@ -905,26 +905,22 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
+ 	tileContigRoutine put = img->put.contig;
+ 	uint32 row, y, nrow, nrowsub, rowstoread;
+ 	tmsize_t pos;
+-	unsigned char* buf;
++	unsigned char* buf = NULL;
+ 	uint32 rowsperstrip;
+ 	uint16 subsamplinghor,subsamplingver;
+ 	uint32 imagewidth = img->width;
+ 	tmsize_t scanline;
+ 	int32 fromskew, toskew;
+ 	int ret = 1, flip;
++        tmsize_t maxstripsize;
+ 
+ 	TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRSUBSAMPLING, &subsamplinghor, &subsamplingver);
+ 	if( subsamplingver == 0 ) {
+ 		TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Invalid vertical YCbCr subsampling");
+ 		return (0);
+ 	}
+-
+-	buf = (unsigned char*) _TIFFmalloc(TIFFStripSize(tif));
+-	if (buf == 0) {
+-		TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer");
+-		return (0);
+-	}
+-	_TIFFmemset(buf, 0, TIFFStripSize(tif));
++	
++	maxstripsize = TIFFStripSize(tif);
+ 
+ 	flip = setorientation(img);
+ 	if (flip & FLIP_VERTICALLY) {
+@@ -946,11 +942,12 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
+ 		nrowsub = nrow;
+ 		if ((nrowsub%subsamplingver)!=0)
+ 			nrowsub+=subsamplingver-nrowsub%subsamplingver;
+-		if (TIFFReadEncodedStrip(tif,
++		if (_TIFFReadEncodedStripAndAllocBuffer(tif,
+ 		    TIFFComputeStrip(tif,row+img->row_offset, 0),
+-		    buf,
++		    (void**)(&buf),
++                    maxstripsize,
+ 		    ((row + img->row_offset)%rowsperstrip + nrowsub) * scanline)==(tmsize_t)(-1)
+-		    && img->stoponerr)
++		    && (buf == NULL || img->stoponerr))
+ 		{
+ 			ret = 0;
+ 			break;
+@@ -994,8 +991,8 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
+ {
+ 	TIFF* tif = img->tif;
+ 	tileSeparateRoutine put = img->put.separate;
+-	unsigned char *buf;
+-	unsigned char *p0, *p1, *p2, *pa;
++	unsigned char *buf = NULL;
++	unsigned char *p0 = NULL, *p1 = NULL, *p2 = NULL, *pa = NULL;
+ 	uint32 row, y, nrow, rowstoread;
+ 	tmsize_t pos;
+ 	tmsize_t scanline;
+@@ -1014,15 +1011,6 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
+ 		TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtStripSeparate");
+ 		return (0);
+ 	}
+-	p0 = buf = (unsigned char *)_TIFFmalloc(bufsize);
+-	if (buf == 0) {
+-		TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer");
+-		return (0);
+-	}
+-	_TIFFmemset(buf, 0, bufsize);
+-	p1 = p0 + stripsize;
+-	p2 = p1 + stripsize;
+-	pa = (alpha?(p2+stripsize):NULL);
+ 
+ 	flip = setorientation(img);
+ 	if (flip & FLIP_VERTICALLY) {
+@@ -1040,7 +1028,6 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
+           case PHOTOMETRIC_MINISBLACK:
+           case PHOTOMETRIC_PALETTE:
+             colorchannels = 1;
+-            p2 = p1 = p0;
+             break;
+ 
+           default:
+@@ -1056,7 +1043,31 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
+ 		rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip;
+ 		nrow = (row + rowstoread > h ? h - row : rowstoread);
+ 		offset_row = row + img->row_offset;
+-		if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0),
++                if( buf == NULL )
++                {
++                    if (_TIFFReadEncodedStripAndAllocBuffer(
++                            tif, TIFFComputeStrip(tif, offset_row, 0),
++                            (void**) &buf, bufsize,
++                            ((row + img->row_offset)%rowsperstrip + nrow) * scanline)==(tmsize_t)(-1)
++                        && (buf == NULL || img->stoponerr))
++                    {
++                            ret = 0;
++                            break;
++                    }
++                    p0 = buf;
++                    if( colorchannels == 1 )
++                    {
++                        p2 = p1 = p0;
++                        pa = (alpha?(p0+3*stripsize):NULL);
++                    }
++                    else
++                    {
++                        p1 = p0 + stripsize;
++                        p2 = p1 + stripsize;
++                        pa = (alpha?(p2+stripsize):NULL);
++                    }
++                }
++		else if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0),
+ 		    p0, ((row + img->row_offset)%rowsperstrip + nrow) * scanline)==(tmsize_t)(-1)
+ 		    && img->stoponerr)
+ 		{
+diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
+index fc0072e7..047305ab 100644
+--- a/libtiff/tif_read.c
++++ b/libtiff/tif_read.c
+@@ -442,18 +442,17 @@ TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample)
+ }
+ 
+ /*
+- * Read a strip of data and decompress the specified
+- * amount into the user-supplied buffer.
++ * Calculate the strip size according to the number of
++ * rows in the strip (check for truncated last strip on any
++ * of the separations).
+  */
+-tmsize_t
+-TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
++static tmsize_t TIFFReadEncodedStripGetStripSize(TIFF* tif, uint32 strip, uint16* pplane)
+ {
+ 	static const char module[] = "TIFFReadEncodedStrip";
+ 	TIFFDirectory *td = &tif->tif_dir;
+ 	uint32 rowsperstrip;
+ 	uint32 stripsperplane;
+ 	uint32 stripinplane;
+-	uint16 plane;
+ 	uint32 rows;
+ 	tmsize_t stripsize;
+ 	if (!TIFFCheckRead(tif,0))
+@@ -465,23 +464,37 @@ TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
+ 		    (unsigned long)td->td_nstrips);
+ 		return((tmsize_t)(-1));
+ 	}
+-	/*
+-	 * Calculate the strip size according to the number of
+-	 * rows in the strip (check for truncated last strip on any
+-	 * of the separations).
+-	 */
++
+ 	rowsperstrip=td->td_rowsperstrip;
+ 	if (rowsperstrip>td->td_imagelength)
+ 		rowsperstrip=td->td_imagelength;
+ 	stripsperplane= TIFFhowmany_32_maxuint_compat(td->td_imagelength, rowsperstrip);
+ 	stripinplane=(strip%stripsperplane);
+-	plane=(uint16)(strip/stripsperplane);
++	if( pplane ) *pplane=(uint16)(strip/stripsperplane);
+ 	rows=td->td_imagelength-stripinplane*rowsperstrip;
+ 	if (rows>rowsperstrip)
+ 		rows=rowsperstrip;
+ 	stripsize=TIFFVStripSize(tif,rows);
+ 	if (stripsize==0)
+ 		return((tmsize_t)(-1));
++	return stripsize;
++}
++
++/*
++ * Read a strip of data and decompress the specified
++ * amount into the user-supplied buffer.
++ */
++tmsize_t
++TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
++{
++	static const char module[] = "TIFFReadEncodedStrip";
++	TIFFDirectory *td = &tif->tif_dir;
++	tmsize_t stripsize;
++	uint16 plane;
++
++	stripsize=TIFFReadEncodedStripGetStripSize(tif, strip, &plane);
++	if (stripsize==((tmsize_t)(-1)))
++		return((tmsize_t)(-1));
+ 
+     /* shortcut to avoid an extra memcpy() */
+     if( td->td_compression == COMPRESSION_NONE &&
+@@ -510,6 +523,49 @@ TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
+ 	return(stripsize);
+ }
+ 
++/* Variant of TIFFReadEncodedStrip() that does 
++ * * if *buf == NULL, *buf = _TIFFmalloc(bufsizetoalloc) only after TIFFFillStrip() has
++ *   suceeded. This avoid excessive memory allocation in case of truncated
++ *   file.
++ * * calls regular TIFFReadEncodedStrip() if *buf != NULL
++ */
++tmsize_t
++_TIFFReadEncodedStripAndAllocBuffer(TIFF* tif, uint32 strip,
++                                    void **buf, tmsize_t bufsizetoalloc,
++                                    tmsize_t size_to_read)
++{
++    tmsize_t this_stripsize;
++    uint16 plane;
++
++    if( *buf != NULL )
++    {
++        return TIFFReadEncodedStrip(tif, strip, *buf, size_to_read);
++    }
++
++    this_stripsize=TIFFReadEncodedStripGetStripSize(tif, strip, &plane);
++    if (this_stripsize==((tmsize_t)(-1)))
++            return((tmsize_t)(-1));
++
++    if ((size_to_read!=(tmsize_t)(-1))&&(size_to_read<this_stripsize))
++            this_stripsize=size_to_read;
++    if (!TIFFFillStrip(tif,strip))
++            return((tmsize_t)(-1));
++
++    *buf = _TIFFmalloc(bufsizetoalloc);
++    if (*buf == NULL) {
++            TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer");
++            return((tmsize_t)(-1));
++    }
++    _TIFFmemset(*buf, 0, bufsizetoalloc);
++
++    if ((*tif->tif_decodestrip)(tif,*buf,this_stripsize,plane)<=0)
++            return((tmsize_t)(-1));
++    (*tif->tif_postdecode)(tif,*buf,this_stripsize);
++    return(this_stripsize);
++
++
++}
++
+ static tmsize_t
+ TIFFReadRawStrip1(TIFF* tif, uint32 strip, void* buf, tmsize_t size,
+     const char* module)
+diff --git a/libtiff/tiffiop.h b/libtiff/tiffiop.h
+index 846ade03..7f0b90f7 100644
+--- a/libtiff/tiffiop.h
++++ b/libtiff/tiffiop.h
+@@ -365,6 +365,11 @@ extern void* _TIFFCheckRealloc(TIFF*, void*, tmsize_t, tmsize_t, const char*);
+ extern double _TIFFUInt64ToDouble(uint64);
+ extern float _TIFFUInt64ToFloat(uint64);
+ 
++extern tmsize_t
++_TIFFReadEncodedStripAndAllocBuffer(TIFF* tif, uint32 strip,
++                                    void **buf, tmsize_t bufsizetoalloc,
++                                    tmsize_t size_to_read);
++
+ extern int TIFFInitDumpMode(TIFF*, int);
+ #ifdef PACKBITS_SUPPORT
+ extern int TIFFInitPackBits(TIFF*, int);
+From 6173a57d39e04d68b139f8c1aa499a24dbe74ba1 Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@spatialys.com>
+Date: Fri, 30 Jun 2017 17:29:44 +0000
+Subject: [PATCH] * libtiff/tif_dirwrite.c: in
+ TIFFWriteDirectoryTagCheckedXXXX() functions associated with LONG8/SLONG8
+ data type, replace assertion that the file is BigTIFF, by a non-fatal error.
+ Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2712 Reported by team
+ OWL337
+
+---
+ ChangeLog              |  8 ++++++++
+ libtiff/tif_dirwrite.c | 20 ++++++++++++++++----
+ 2 files changed, 24 insertions(+), 4 deletions(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index 6f085e09..77a64385 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -1,5 +1,13 @@
+ 2017-06-30  Even Rouault <even.rouault at spatialys.com>
+ 
++	* libtiff/tif_dirwrite.c: in TIFFWriteDirectoryTagCheckedXXXX()
++	functions associated with LONG8/SLONG8 data type, replace assertion that
++	the file is BigTIFF, by a non-fatal error.
++	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2712
++	Reported by team OWL337
++
++2017-06-30  Even Rouault <even.rouault at spatialys.com>
++
+ 	* libtiff/tif_read.c, tiffiop.h: add a _TIFFReadEncodedStripAndAllocBuffer()
+ 	function, variant of TIFFReadEncodedStrip() that allocates the
+ 	decoded buffer only after a first successful TIFFFillStrip(). This avoids
+diff --git a/libtiff/tif_dirwrite.c b/libtiff/tif_dirwrite.c
+index 2967da58..8d6686ba 100644
+--- a/libtiff/tif_dirwrite.c
++++ b/libtiff/tif_dirwrite.c
+@@ -2111,7 +2111,10 @@ TIFFWriteDirectoryTagCheckedLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ui
+ {
+ 	uint64 m;
+ 	assert(sizeof(uint64)==8);
+-	assert(tif->tif_flags&TIFF_BIGTIFF);
++	if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
++		TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
++		return(0);
++	}
+ 	m=value;
+ 	if (tif->tif_flags&TIFF_SWAB)
+ 		TIFFSwabLong8(&m);
+@@ -2124,7 +2127,10 @@ TIFFWriteDirectoryTagCheckedLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* di
+ {
+ 	assert(count<0x20000000);
+ 	assert(sizeof(uint64)==8);
+-	assert(tif->tif_flags&TIFF_BIGTIFF);
++	if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
++		TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
++		return(0);
++	}
+ 	if (tif->tif_flags&TIFF_SWAB)
+ 		TIFFSwabArrayOfLong8(value,count);
+ 	return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,count,count*8,value));
+@@ -2136,7 +2142,10 @@ TIFFWriteDirectoryTagCheckedSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, u
+ {
+ 	int64 m;
+ 	assert(sizeof(int64)==8);
+-	assert(tif->tif_flags&TIFF_BIGTIFF);
++	if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
++		TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","SLONG8 not allowed for ClassicTIFF");
++		return(0);
++	}
+ 	m=value;
+ 	if (tif->tif_flags&TIFF_SWAB)
+ 		TIFFSwabLong8((uint64*)(&m));
+@@ -2149,7 +2158,10 @@ TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* d
+ {
+ 	assert(count<0x20000000);
+ 	assert(sizeof(int64)==8);
+-	assert(tif->tif_flags&TIFF_BIGTIFF);
++	if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
++		TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","SLONG8 not allowed for ClassicTIFF");
++		return(0);
++	}
+ 	if (tif->tif_flags&TIFF_SWAB)
+ 		TIFFSwabArrayOfLong8((uint64*)value,count);
+ 	return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,count,count*8,value));
-- 
2.30.9