From patchwork Thu Dec 13 05:54:21 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: libxml2 CVE-2012-2871 Date: Thu, 13 Dec 2012 05:54:21 -0000 From: Li Wang X-Patchwork-Id: 40877 Message-Id: <1355378061-7514-1-git-send-email-li.wang@windriver.com> To: 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 --- .../libxml/libxml2/libxml2-CVE-2012-2871.patch | 34 ++++++++++++++++++++++ meta/recipes-core/libxml/libxml2_2.9.0.bb | 5 +++- 2 files changed, 38 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.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 +--- + 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_2.9.0.bb b/meta/recipes-core/libxml/libxml2_2.9.0.bb index a022ae9..ecc19fb 100644 --- a/meta/recipes-core/libxml/libxml2_2.9.0.bb +++ b/meta/recipes-core/libxml/libxml2_2.9.0.bb @@ -1,6 +1,9 @@ require libxml2.inc -PR = "${INC_PR}.0" +PR = "${INC_PR}.1" SRC_URI[md5sum] = "5b9bebf4f5d2200ae2c4efe8fa6103f7" SRC_URI[sha256sum] = "ad25d91958b7212abdc12b9611cfb4dc4e5cddb6d1e9891532f48aacee422b82" + +SRC_URI += "file://libxml2-CVE-2012-2871.patch \ + "