Issued:

2012-11-29

Updated:

2012-11-29

RHSA-2012:1512 - Important: libxml2 security update

Synopsis

Important: libxml2 security update

Type/Severity

Security Advisory Important

Topic

Updated libxml2 packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

The libxml2 library is a development toolbox providing the implementation of various XML standards.

A heap-based buffer underflow flaw was found in the way libxml2 decoded certain entities. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2012-5134)

All users of libxml2 are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The desktop must be restarted (log out, then log back in) for this update to take effect.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

Affected Products

Updated Packages

• libxml2-2.6.26-2.1.15.el5_8.6.src.rpm
• libxml2-static-2.7.6-8.el6_3.4.ppc64.rpm
• libxml2-devel-2.6.26-2.1.15.el5_8.6.ia64.rpm
• libxml2-devel-2.6.26-2.1.15.el5_8.6.s390.rpm
• libxml2-devel-2.6.26-2.1.15.el5_8.6.s390x.rpm
• libxml2-2.6.26-2.1.15.el5_8.6.ppc.rpm
• libxml2-debuginfo-2.7.6-8.el6_3.4.x86_64.rpm
• libxml2-devel-2.7.6-8.el6_3.4.i686.rpm
• libxml2-python-2.6.26-2.1.15.el5_8.6.s390x.rpm
• libxml2-devel-2.7.6-8.el6_3.4.ppc.rpm
• libxml2-2.7.6-8.el6_3.4.i686.rpm
• libxml2-devel-2.7.6-8.el6_3.4.s390.rpm
• libxml2-debuginfo-2.6.26-2.1.15.el5_8.6.i386.rpm
• libxml2-debuginfo-2.7.6-8.el6_3.4.ppc.rpm
• libxml2-2.7.6-8.el6_3.4.x86_64.rpm
• libxml2-debuginfo-2.6.26-2.1.15.el5_8.6.ia64.rpm
• libxml2-debuginfo-2.6.26-2.1.15.el5_8.6.s390.rpm
• libxml2-python-2.7.6-8.el6_3.4.x86_64.rpm
• libxml2-debuginfo-2.7.6-8.el6_3.4.ppc64.rpm
• libxml2-2.7.6-8.el6_3.4.s390.rpm
• libxml2-2.6.26-2.1.15.el5_8.6.ppc64.rpm
• libxml2-devel-2.7.6-8.el6_3.4.s390x.rpm
• libxml2-static-2.7.6-8.el6_3.4.x86_64.rpm
• libxml2-python-2.7.6-8.el6_3.4.i686.rpm
• libxml2-2.6.26-2.1.15.el5_8.6.s390.rpm
• libxml2-2.7.6-8.el6_3.4.src.rpm
• libxml2-static-2.7.6-8.el6_3.4.s390x.rpm
• libxml2-python-2.6.26-2.1.15.el5_8.6.ppc.rpm
• libxml2-2.6.26-2.1.15.el5_8.6.ia64.rpm
• libxml2-devel-2.6.26-2.1.15.el5_8.6.i386.rpm
• libxml2-2.6.26-2.1.15.el5_8.6.s390x.rpm
• libxml2-python-2.6.26-2.1.15.el5_8.6.x86_64.rpm
• libxml2-devel-2.6.26-2.1.15.el5_8.6.ppc64.rpm
• libxml2-2.6.26-2.1.15.el5_8.6.x86_64.rpm
• libxml2-static-2.7.6-8.el6_3.4.i686.rpm
• libxml2-2.7.6-8.el6_3.4.ppc64.rpm
• libxml2-2.6.26-2.1.15.el5_8.6.i386.rpm
• libxml2-debuginfo-2.7.6-8.el6_3.4.s390x.rpm
• libxml2-debuginfo-2.6.26-2.1.15.el5_8.6.ppc.rpm
• libxml2-devel-2.6.26-2.1.15.el5_8.6.ppc.rpm
• libxml2-python-2.7.6-8.el6_3.4.ppc64.rpm
• libxml2-python-2.7.6-8.el6_3.4.s390x.rpm
• libxml2-2.7.6-8.el6_3.4.s390x.rpm
• libxml2-devel-2.7.6-8.el6_3.4.ppc64.rpm
• libxml2-python-2.6.26-2.1.15.el5_8.6.ia64.rpm
• libxml2-devel-2.7.6-8.el6_3.4.x86_64.rpm
• libxml2-python-2.6.26-2.1.15.el5_8.6.i386.rpm
• libxml2-debuginfo-2.7.6-8.el6_3.4.s390.rpm
• libxml2-2.7.6-8.el6_3.4.ppc.rpm
• libxml2-devel-2.6.26-2.1.15.el5_8.6.x86_64.rpm
• libxml2-debuginfo-2.6.26-2.1.15.el5_8.6.x86_64.rpm
• libxml2-debuginfo-2.6.26-2.1.15.el5_8.6.s390x.rpm
• libxml2-debuginfo-2.7.6-8.el6_3.4.i686.rpm
• libxml2-debuginfo-2.6.26-2.1.15.el5_8.6.ppc64.rpm

Fixes

• This content is not included.BZ - 880466

CVEs

• CVE-2012-5134

References

• https://access.redhat.com/security/updates/classification/#important

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.