Red Hat Security Advisory: libxml2 security update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:1512 Final 1 1 2012-11-29T18:35:00Z Current version 2012-11-29T18:35:00Z 2012-11-29T18:35:00Z Red Hat rhsa-to-cvrf 1.0.1484 2012-11-29T18:54:01Z 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. 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. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2012 Red Hat, Inc. All rights reserved. Important https://rhn.redhat.com/errata/RHSA-2012-1512.html https://rhn.redhat.com/errata/RHSA-2012-1512.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/updates/classification/#important Red Hat Enterprise Linux Desktop (v. 5 client) Red Hat Enterprise Linux HPC Node Optional (v. 6) Red Hat Enterprise Linux Server (v. 6) Red Hat Enterprise Linux Workstation (v. 6) Red Hat Enterprise Linux Desktop Optional (v. 6) Red Hat Enterprise Linux Workstation Optional (v. 6) Red Hat Enterprise Linux HPC Node (v. 6) Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 6) RHEL Desktop Workstation (v. 5 client) Red Hat Enterprise Linux Server Optional (v. 6) libxml2-2.6.26-2.1.15.el5_8.6.src.rpm libxml2-2.7.6-8.el6_3.4.src.rpm libxml2-2.6.26-2.1.15.el5_8.6 as a component of Red Hat Enterprise Linux Desktop (v. 5 client) libxml2-2.7.6-8.el6_3.4 as a component of Red Hat Enterprise Linux HPC Node Optional (v. 6) libxml2-2.7.6-8.el6_3.4 as a component of Red Hat Enterprise Linux Server (v. 6) libxml2-2.7.6-8.el6_3.4 as a component of Red Hat Enterprise Linux Workstation (v. 6) libxml2-2.7.6-8.el6_3.4 as a component of Red Hat Enterprise Linux Desktop Optional (v. 6) libxml2-2.7.6-8.el6_3.4 as a component of Red Hat Enterprise Linux Workstation Optional (v. 6) libxml2-2.7.6-8.el6_3.4 as a component of Red Hat Enterprise Linux HPC Node (v. 6) libxml2-2.6.26-2.1.15.el5_8.6 as a component of Red Hat Enterprise Linux (v. 5 server) libxml2-2.7.6-8.el6_3.4 as a component of Red Hat Enterprise Linux Desktop (v. 6) libxml2-2.6.26-2.1.15.el5_8.6 as a component of RHEL Desktop Workstation (v. 5 client) libxml2-2.7.6-8.el6_3.4 as a component of Red Hat Enterprise Linux Server Optional (v. 6) 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. 2012-11-26T00:00:00Z 2012-11-27T00:00:00Z CVE-2012-5134 5Client-5.8.Z:libxml2-2.6.26-2.1.15.el5_8.6 5Client-Workstation-5.8.Z:libxml2-2.6.26-2.1.15.el5_8.6 5Server-5.8.Z:libxml2-2.6.26-2.1.15.el5_8.6 6Client-6.3.z:libxml2-2.7.6-8.el6_3.4 6Client-optional-6.3.z:libxml2-2.7.6-8.el6_3.4 6ComputeNode-6.3.z:libxml2-2.7.6-8.el6_3.4 6ComputeNode-optional-6.3.z:libxml2-2.7.6-8.el6_3.4 6Server-6.3.z:libxml2-2.7.6-8.el6_3.4 6Server-optional-6.3.z:libxml2-2.7.6-8.el6_3.4 6Workstation-6.3.z:libxml2-2.7.6-8.el6_3.4 6Workstation-optional-6.3.z:libxml2-2.7.6-8.el6_3.4 Important 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P 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 https://rhn.redhat.com/errata/RHSA-2012-1512.html https://www.redhat.com/security/data/cve/CVE-2012-5134.html CVE-2012-5134 https://bugzilla.redhat.com/show_bug.cgi?id=880466 bz#880466: CVE-2012-5134 libxml2: Heap-buffer-underflow in xmlParseAttValueComplex