version up : libexpat 2.2.0.

component/libexpat/CVE-2015-1283-refix.patch

-From 29a11774d8ebbafe8418b4a5ffb4cc1160b194a1 Mon Sep 17 00:00:00 2001
-From: Pascal Cuoq <cuoq@trust-in-soft.com>
-Date: Sun, 15 May 2016 09:05:46 +0200
-Subject: [PATCH] Avoid relying on undefined behavior in CVE-2015-1283 fix. It
- does not really work: https://godbolt.org/g/Zl8gdF
-
----
- expat/lib/xmlparse.c | 6 ++++--
- 1 file changed, 4 insertions(+), 2 deletions(-)
-
-diff --git a/lib/xmlparse.c b/lib/xmlparse.c
-index 13e080d..cdb12ef 100644
---- a/lib/xmlparse.c
-+++ b/lib/xmlparse.c
-@@ -1695,7 +1695,8 @@ XML_GetBuffer(XML_Parser parser, int len
-   }
- 
-   if (len > bufferLim - bufferEnd) {
--    int neededSize = len + (int)(bufferEnd - bufferPtr);
-+    /* Do not invoke signed arithmetic overflow: */
-+    int neededSize = (int) ((unsigned)len + (unsigned)(bufferEnd - bufferPtr));
- /* BEGIN MOZILLA CHANGE (sanity check neededSize) */
-     if (neededSize < 0) {
-       errorCode = XML_ERROR_NO_MEMORY;
-@@ -1729,7 +1730,8 @@ XML_GetBuffer(XML_Parser parser, int len
-       if (bufferSize == 0)
-         bufferSize = INIT_BUFFER_SIZE;
-       do {
--        bufferSize *= 2;
-+        /* Do not invoke signed arithmetic overflow: */
-+        bufferSize = (int) (2U * (unsigned) bufferSize);
- /* BEGIN MOZILLA CHANGE (prevent infinite loop on overflow) */
-       } while (bufferSize < neededSize && bufferSize > 0);
- /* END MOZILLA CHANGE */
--- 
-2.8.2
-

component/libexpat/CVE-2015-1283.patch

-Description: fix multiple integer overflows in the XML_GetBuffer function
- Multiple integer overflows in the XML_GetBuffer function in Expat through
- 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products,
- allow remote attackers to cause a denial of service (heap-based buffer
- overflow) or possibly have unspecified other impact via crafted XML data,
- a related issue to CVE-2015-2716.
-Origin: Mozilla, https://hg.mozilla.org/releases/mozilla-esr31/rev/2f3e78643f5c
-Author: Eric Rahm <erahm@mozilla.com>
-Forwarded: not-needed
-Last-Update: 2015-07-24
-
-diff --git a/lib/xmlparse.c b/lib/xmlparse.c
---- a/lib/xmlparse.c
-+++ b/lib/xmlparse.c
-@@ -1673,29 +1673,40 @@ XML_ParseBuffer(XML_Parser parser, int l
-   XmlUpdatePosition(encoding, positionPtr, bufferPtr, &position);
-   positionPtr = bufferPtr;
-   return result;
- }
- 
- void * XMLCALL
- XML_GetBuffer(XML_Parser parser, int len)
- {
-+/* BEGIN MOZILLA CHANGE (sanity check len) */
-+  if (len < 0) {
-+    errorCode = XML_ERROR_NO_MEMORY;
-+    return NULL;
-+  }
-+/* END MOZILLA CHANGE */
-   switch (ps_parsing) {
-   case XML_SUSPENDED:
-     errorCode = XML_ERROR_SUSPENDED;
-     return NULL;
-   case XML_FINISHED:
-     errorCode = XML_ERROR_FINISHED;
-     return NULL;
-   default: ;
-   }
- 
-   if (len > bufferLim - bufferEnd) {
--    /* FIXME avoid integer overflow */
-     int neededSize = len + (int)(bufferEnd - bufferPtr);
-+/* BEGIN MOZILLA CHANGE (sanity check neededSize) */
-+    if (neededSize < 0) {
-+      errorCode = XML_ERROR_NO_MEMORY;
-+      return NULL;
-+    }
-+/* END MOZILLA CHANGE */
- #ifdef XML_CONTEXT_BYTES
-     int keep = (int)(bufferPtr - buffer);
- 
-     if (keep > XML_CONTEXT_BYTES)
-       keep = XML_CONTEXT_BYTES;
-     neededSize += keep;
- #endif  /* defined XML_CONTEXT_BYTES */
-     if (neededSize  <= bufferLim - buffer) {
-@@ -1714,17 +1725,25 @@ XML_GetBuffer(XML_Parser parser, int len
-     }
-     else {
-       char *newBuf;
-       int bufferSize = (int)(bufferLim - bufferPtr);
-       if (bufferSize == 0)
-         bufferSize = INIT_BUFFER_SIZE;
-       do {
-         bufferSize *= 2;
--      } while (bufferSize < neededSize);
-+/* BEGIN MOZILLA CHANGE (prevent infinite loop on overflow) */
-+      } while (bufferSize < neededSize && bufferSize > 0);
-+/* END MOZILLA CHANGE */
-+/* BEGIN MOZILLA CHANGE (sanity check bufferSize) */
-+      if (bufferSize <= 0) {
-+        errorCode = XML_ERROR_NO_MEMORY;
-+        return NULL;
-+      }
-+/* END MOZILLA CHANGE */
-       newBuf = (char *)MALLOC(bufferSize);
-       if (newBuf == 0) {
-         errorCode = XML_ERROR_NO_MEMORY;
-         return NULL;
-       }
-       bufferLim = newBuf + bufferSize;
- #ifdef XML_CONTEXT_BYTES
-       if (bufferPtr) {
-
-
-
-

component/libexpat/buildout.cfg

@@ -2,19 +2,9 @@
 parts =
   libexpat
 
-extends =
-  ../patch/buildout.cfg
-
 [libexpat]
 recipe = slapos.recipe.cmmi
-url = http://downloads.sourceforge.net/project/expat/expat/2.1.0/expat-2.1.0.tar.gz
-md5sum = dd7dab7a5fea97d2a6a43f511449b7cd
+url = http://downloads.sourceforge.net/project/expat/expat/2.2.0/expat-2.2.0.tar.bz2
+md5sum = 2f47841c829facb346eb6e3fab5212e2
 configure-options =
   --disable-static
-patch-options = -p1
-patches =
-  ${:_profile_base_location_}/CVE-2015-1283.patch#44b31d7377035591f37ad94a31a8042b
-  ${:_profile_base_location_}/CVE-2015-1283-refix.patch#47382fe30c9a49724c626cef793ef382
-  ${:_profile_base_location_}/CVE-2016-0718-v2-2-1.patch#4ee57e7a052ada99f2e11fa21a229727
-environment =
-  PATH=${patch:location}/bin:%(PATH)s