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[RHSA-2012:0018-01] Important: libxml2 security update

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Red Hat Security Advisory

 

Synopsis: Important: libxml2 security update

Advisory ID: RHSA-2012:0018-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0018.html

Issue date: 2012-01-11

CVE Names: CVE-2011-3905 CVE-2011-3919

=====================================================================

 

1. Summary:

 

Updated libxml2 packages that fix two security issues are now available for

Red Hat Enterprise Linux 6.

 

The Red Hat Security Response Team has rated this update as having

important security impact. Common Vulnerability Scoring System (CVSS) base

scores, which give detailed severity ratings, are available for each

vulnerability from the CVE links in the References section.

 

2. Relevant releases/architectures:

 

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.

 

A heap-based buffer overflow flaw was found in the way libxml2 decoded

entity references with long names. 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-2011-3919)

 

An out-of-bounds memory read flaw was found in libxml2. 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.

(CVE-2011-3905)

 

All users of libxml2 are advised to upgrade to these updated packages,

which contain backported patches to correct these issues. 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/):

 

767387 - CVE-2011-3905 libxml2 out of bounds read

771896 - CVE-2011-3919 libxml2: Heap-based buffer overflow when decoding an entity reference with a long name

 

6. Package List:

 

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_2.1.src.rpm

 

i386:

libxml2-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-python-2.7.6-4.el6_2.1.i686.rpm

 

x86_64:

libxml2-2.7.6-4.el6_2.1.i686.rpm

libxml2-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-python-2.7.6-4.el6_2.1.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_2.1.src.rpm

 

i386:

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-devel-2.7.6-4.el6_2.1.i686.rpm

libxml2-static-2.7.6-4.el6_2.1.i686.rpm

 

x86_64:

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-devel-2.7.6-4.el6_2.1.i686.rpm

libxml2-devel-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-static-2.7.6-4.el6_2.1.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_2.1.src.rpm

 

x86_64:

libxml2-2.7.6-4.el6_2.1.i686.rpm

libxml2-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-python-2.7.6-4.el6_2.1.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_2.1.src.rpm

 

x86_64:

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-devel-2.7.6-4.el6_2.1.i686.rpm

libxml2-devel-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-static-2.7.6-4.el6_2.1.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_2.1.src.rpm

 

i386:

libxml2-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-devel-2.7.6-4.el6_2.1.i686.rpm

libxml2-python-2.7.6-4.el6_2.1.i686.rpm

 

ppc64:

libxml2-2.7.6-4.el6_2.1.ppc.rpm

libxml2-2.7.6-4.el6_2.1.ppc64.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.ppc.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.ppc64.rpm

libxml2-devel-2.7.6-4.el6_2.1.ppc.rpm

libxml2-devel-2.7.6-4.el6_2.1.ppc64.rpm

libxml2-python-2.7.6-4.el6_2.1.ppc64.rpm

 

s390x:

libxml2-2.7.6-4.el6_2.1.s390.rpm

libxml2-2.7.6-4.el6_2.1.s390x.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.s390.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.s390x.rpm

libxml2-devel-2.7.6-4.el6_2.1.s390.rpm

libxml2-devel-2.7.6-4.el6_2.1.s390x.rpm

libxml2-python-2.7.6-4.el6_2.1.s390x.rpm

 

x86_64:

libxml2-2.7.6-4.el6_2.1.i686.rpm

libxml2-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-devel-2.7.6-4.el6_2.1.i686.rpm

libxml2-devel-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-python-2.7.6-4.el6_2.1.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_2.1.src.rpm

 

i386:

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-static-2.7.6-4.el6_2.1.i686.rpm

 

ppc64:

libxml2-debuginfo-2.7.6-4.el6_2.1.ppc64.rpm

libxml2-static-2.7.6-4.el6_2.1.ppc64.rpm

 

s390x:

libxml2-debuginfo-2.7.6-4.el6_2.1.s390x.rpm

libxml2-static-2.7.6-4.el6_2.1.s390x.rpm

 

x86_64:

libxml2-debuginfo-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-static-2.7.6-4.el6_2.1.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_2.1.src.rpm

 

i386:

libxml2-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-devel-2.7.6-4.el6_2.1.i686.rpm

libxml2-python-2.7.6-4.el6_2.1.i686.rpm

 

x86_64:

libxml2-2.7.6-4.el6_2.1.i686.rpm

libxml2-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-debuginfo-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-devel-2.7.6-4.el6_2.1.i686.rpm

libxml2-devel-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-python-2.7.6-4.el6_2.1.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_2.1.src.rpm

 

i386:

libxml2-debuginfo-2.7.6-4.el6_2.1.i686.rpm

libxml2-static-2.7.6-4.el6_2.1.i686.rpm

 

x86_64:

libxml2-debuginfo-2.7.6-4.el6_2.1.x86_64.rpm

libxml2-static-2.7.6-4.el6_2.1.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-2011-3905.html

https://www.redhat.com/security/data/cve/CVE-2011-3919.html

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

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2012 Red Hat, Inc.

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