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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0201 Moderate: libxml2 security update 22 February 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libxml2 Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-0841 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-0324.html Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running libxml2 check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: libxml2 security update Advisory ID: RHSA-2012:0324-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0324.html Issue date: 2012-02-21 CVE Names: CVE-2012-0841 ===================================================================== 1. Summary: 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 moderate 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. 2. Relevant releases/architectures: RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. Description: The libxml2 library is a development toolbox providing the implementation of various XML standards. It was found that the hashing routine used by libxml2 arrays was susceptible to predictable hash collisions. Sending a specially-crafted message to an XML service could result in longer processing time, which could lead to a denial of service. To mitigate this issue, randomization has been added to the hashing function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2012-0841) 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. 4. 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/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 787067 - CVE-2012-0841 libxml2: hash table collisions CPU usage DoS 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libxml2-2.6.26-2.1.15.el5_8.2.src.rpm i386: libxml2-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-python-2.6.26-2.1.15.el5_8.2.i386.rpm x86_64: libxml2-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-2.6.26-2.1.15.el5_8.2.x86_64.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.x86_64.rpm libxml2-python-2.6.26-2.1.15.el5_8.2.x86_64.rpm RHEL Desktop Workstation (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libxml2-2.6.26-2.1.15.el5_8.2.src.rpm i386: libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.i386.rpm x86_64: libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.x86_64.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/libxml2-2.6.26-2.1.15.el5_8.2.src.rpm i386: libxml2-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-python-2.6.26-2.1.15.el5_8.2.i386.rpm ia64: libxml2-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-2.6.26-2.1.15.el5_8.2.ia64.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.ia64.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.ia64.rpm libxml2-python-2.6.26-2.1.15.el5_8.2.ia64.rpm ppc: libxml2-2.6.26-2.1.15.el5_8.2.ppc.rpm libxml2-2.6.26-2.1.15.el5_8.2.ppc64.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.ppc.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.ppc64.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.ppc.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.ppc64.rpm libxml2-python-2.6.26-2.1.15.el5_8.2.ppc.rpm s390x: libxml2-2.6.26-2.1.15.el5_8.2.s390.rpm libxml2-2.6.26-2.1.15.el5_8.2.s390x.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.s390.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.s390x.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.s390.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.s390x.rpm libxml2-python-2.6.26-2.1.15.el5_8.2.s390x.rpm x86_64: libxml2-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-2.6.26-2.1.15.el5_8.2.x86_64.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-debuginfo-2.6.26-2.1.15.el5_8.2.x86_64.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.i386.rpm libxml2-devel-2.6.26-2.1.15.el5_8.2.x86_64.rpm libxml2-python-2.6.26-2.1.15.el5_8.2.x86_64.rpm Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libxml2-2.7.6-4.el6_2.4.src.rpm i386: libxml2-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-python-2.7.6-4.el6_2.4.i686.rpm x86_64: libxml2-2.7.6-4.el6_2.4.i686.rpm libxml2-2.7.6-4.el6_2.4.x86_64.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.x86_64.rpm libxml2-python-2.7.6-4.el6_2.4.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libxml2-2.7.6-4.el6_2.4.src.rpm i386: libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-devel-2.7.6-4.el6_2.4.i686.rpm libxml2-static-2.7.6-4.el6_2.4.i686.rpm x86_64: libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.x86_64.rpm libxml2-devel-2.7.6-4.el6_2.4.i686.rpm libxml2-devel-2.7.6-4.el6_2.4.x86_64.rpm libxml2-static-2.7.6-4.el6_2.4.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libxml2-2.7.6-4.el6_2.4.src.rpm x86_64: libxml2-2.7.6-4.el6_2.4.i686.rpm libxml2-2.7.6-4.el6_2.4.x86_64.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.x86_64.rpm libxml2-python-2.7.6-4.el6_2.4.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libxml2-2.7.6-4.el6_2.4.src.rpm x86_64: libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.x86_64.rpm libxml2-devel-2.7.6-4.el6_2.4.i686.rpm libxml2-devel-2.7.6-4.el6_2.4.x86_64.rpm libxml2-static-2.7.6-4.el6_2.4.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libxml2-2.7.6-4.el6_2.4.src.rpm i386: libxml2-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-devel-2.7.6-4.el6_2.4.i686.rpm libxml2-python-2.7.6-4.el6_2.4.i686.rpm ppc64: libxml2-2.7.6-4.el6_2.4.ppc.rpm libxml2-2.7.6-4.el6_2.4.ppc64.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.ppc.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.ppc64.rpm libxml2-devel-2.7.6-4.el6_2.4.ppc.rpm libxml2-devel-2.7.6-4.el6_2.4.ppc64.rpm libxml2-python-2.7.6-4.el6_2.4.ppc64.rpm s390x: libxml2-2.7.6-4.el6_2.4.s390.rpm libxml2-2.7.6-4.el6_2.4.s390x.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.s390.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.s390x.rpm libxml2-devel-2.7.6-4.el6_2.4.s390.rpm libxml2-devel-2.7.6-4.el6_2.4.s390x.rpm libxml2-python-2.7.6-4.el6_2.4.s390x.rpm x86_64: libxml2-2.7.6-4.el6_2.4.i686.rpm libxml2-2.7.6-4.el6_2.4.x86_64.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.x86_64.rpm libxml2-devel-2.7.6-4.el6_2.4.i686.rpm libxml2-devel-2.7.6-4.el6_2.4.x86_64.rpm libxml2-python-2.7.6-4.el6_2.4.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libxml2-2.7.6-4.el6_2.4.src.rpm i386: libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-static-2.7.6-4.el6_2.4.i686.rpm ppc64: libxml2-debuginfo-2.7.6-4.el6_2.4.ppc64.rpm libxml2-static-2.7.6-4.el6_2.4.ppc64.rpm s390x: libxml2-debuginfo-2.7.6-4.el6_2.4.s390x.rpm libxml2-static-2.7.6-4.el6_2.4.s390x.rpm x86_64: libxml2-debuginfo-2.7.6-4.el6_2.4.x86_64.rpm libxml2-static-2.7.6-4.el6_2.4.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libxml2-2.7.6-4.el6_2.4.src.rpm i386: libxml2-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-devel-2.7.6-4.el6_2.4.i686.rpm libxml2-python-2.7.6-4.el6_2.4.i686.rpm x86_64: libxml2-2.7.6-4.el6_2.4.i686.rpm libxml2-2.7.6-4.el6_2.4.x86_64.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-debuginfo-2.7.6-4.el6_2.4.x86_64.rpm libxml2-devel-2.7.6-4.el6_2.4.i686.rpm libxml2-devel-2.7.6-4.el6_2.4.x86_64.rpm libxml2-python-2.7.6-4.el6_2.4.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libxml2-2.7.6-4.el6_2.4.src.rpm i386: libxml2-debuginfo-2.7.6-4.el6_2.4.i686.rpm libxml2-static-2.7.6-4.el6_2.4.i686.rpm x86_64: libxml2-debuginfo-2.7.6-4.el6_2.4.x86_64.rpm libxml2-static-2.7.6-4.el6_2.4.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2012-0841.html https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPRBw7XlSAg2UNWIIRAoo/AJ9HqbZmLr9y+K4SKtnFYzFLD4BN8wCgvdDo fGUCXFUeoOtU1zfXwdsnyf0= =d10k - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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