[oe-commits] Li Wang : libxml2 CVE-2012-2871

[git at git.openembedded.org]

Module: openembedded-core.git
Branch: danny
Commit: 6d4453ce06191c09787e65d3b6a704651608d8b7
URL:    http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=6d4453ce06191c09787e65d3b6a704651608d8b7

Author: Li Wang <li.wang at windriver.com>
Date:   Thu Dec 13 13:54:21 2012 +0800

libxml2 CVE-2012-2871

the patch come from:
http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libxml/src \
/include/libxml/tree.h?r1=56276&r2=149930

libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89,
does not properly support a cast of an unspecified variable during handling
of XSL transforms, which allows remote attackers to cause a denial of service
or possibly have unknown other impact via a crafted document, related to the
_xmlNs data structure in include/libxml/tree.h.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2871

[YOCTO #3580]
[ CQID: WIND00376779 ]
Upstream-Status: Pending

Signed-off-by: Li Wang <li.wang at windriver.com>
Signed-off-by: Saul Wold <sgw at linux.intel.com>
Signed-off-by: Ross Burton <ross.burton at intel.com>

---

 meta/recipes-core/libxml/libxml2.inc               |    1 +
 .../libxml/libxml2/libxml2-CVE-2012-2871.patch     |   34 ++++++++++++++++++++
 meta/recipes-core/libxml/libxml2_2.8.0.bb          |    2 +-
 3 files changed, 36 insertions(+), 1 deletions(-)

diff --git a/meta/recipes-core/libxml/libxml2.inc b/meta/recipes-core/libxml/libxml2.inc
index 68437ae..0c64edc 100644
--- a/meta/recipes-core/libxml/libxml2.inc
+++ b/meta/recipes-core/libxml/libxml2.inc
@@ -14,6 +14,7 @@ DEPENDS =+ "zlib"
 
 SRC_URI = "ftp://xmlsoft.org/libxml2/libxml2-${PV}.tar.gz \
            file://libxml-64bit.patch \
+           file://libxml2-CVE-2012-2871.patch \
            file://ansidecl.patch"
 
 
diff --git a/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch b/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
new file mode 100644
index 0000000..3c66a9c
--- /dev/null
+++ b/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
@@ -0,0 +1,34 @@
+libxml2 CVE-2012-2871
+
+the patch come from:
+http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libxml/src \
+/include/libxml/tree.h?r1=56276&r2=149930
+
+libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89,
+does not properly support a cast of an unspecified variable during handling
+of XSL transforms, which allows remote attackers to cause a denial of service
+or possibly have unknown other impact via a crafted document, related to the
+_xmlNs data structure in include/libxml/tree.h.
+
+http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2871
+
+Signed-off-by: Li Wang <li.wang at windriver.com>
+---
+ include/libxml/tree.h |    1 +
+ 1 files changed, 1 insertions(+), 0 deletions(-)
+
+diff --git a/include/libxml/tree.h b/include/libxml/tree.h
+index b733589..5422dda 100644
+--- a/include/libxml/tree.h
++++ b/include/libxml/tree.h
+@@ -351,6 +351,7 @@ struct _xmlNs {
+     struct _xmlNs  *next;	/* next Ns link for this node  */
+     xmlNsType      type;	/* global or local */
+     const xmlChar *href;	/* URL for the namespace */
++    const char *dummy_children;	/* lines up with node->children */
+     const xmlChar *prefix;	/* prefix for the namespace */
+     void           *_private;   /* application data */
+     struct _xmlDoc *context;		/* normally an xmlDoc */
+-- 
+1.7.0.5
+
diff --git a/meta/recipes-core/libxml/libxml2_2.8.0.bb b/meta/recipes-core/libxml/libxml2_2.8.0.bb
index 37eba34..e38cf2c 100644
--- a/meta/recipes-core/libxml/libxml2_2.8.0.bb
+++ b/meta/recipes-core/libxml/libxml2_2.8.0.bb
@@ -1,6 +1,6 @@
 require libxml2.inc
 
-PR = "r2"
+PR = "r3"
 
 SRC_URI[md5sum] = "c62106f02ee00b6437f0fb9d370c1093"
 SRC_URI[sha256sum] = "f2e2d0e322685193d1affec83b21dc05d599e17a7306d7b90de95bb5b9ac622a"