Red Hat: 2012:1288-01: libxml2: Moderate Advisory
Summary
The libxml2 library is a development toolbox providing the implementation
of various XML standards.
Multiple integer overflow flaws, leading to heap-based buffer overflows,
were found in the way libxml2 handled documents that enable entity
expansion. A remote attacker could provide a large, 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-2012-2807)
A one byte buffer overflow was found in the way libxml2 evaluated certain
parts of XML Pointer Language (XPointer) expressions. 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-2011-3102)
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.
Summary
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
References
https://www.redhat.com/security/data/cve/CVE-2011-3102.html https://www.redhat.com/security/data/cve/CVE-2012-2807.html https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386:
libxml2-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-python-2.6.26-2.1.15.el5_8.5.i386.rpm
x86_64:
libxml2-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-2.6.26-2.1.15.el5_8.5.x86_64.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.x86_64.rpm
libxml2-python-2.6.26-2.1.15.el5_8.5.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386:
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.i386.rpm
x86_64:
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.x86_64.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386:
libxml2-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-python-2.6.26-2.1.15.el5_8.5.i386.rpm
ia64:
libxml2-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-2.6.26-2.1.15.el5_8.5.ia64.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.ia64.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.ia64.rpm
libxml2-python-2.6.26-2.1.15.el5_8.5.ia64.rpm
ppc:
libxml2-2.6.26-2.1.15.el5_8.5.ppc.rpm
libxml2-2.6.26-2.1.15.el5_8.5.ppc64.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.ppc.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.ppc64.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.ppc.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.ppc64.rpm
libxml2-python-2.6.26-2.1.15.el5_8.5.ppc.rpm
s390x:
libxml2-2.6.26-2.1.15.el5_8.5.s390.rpm
libxml2-2.6.26-2.1.15.el5_8.5.s390x.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.s390.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.s390x.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.s390.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.s390x.rpm
libxml2-python-2.6.26-2.1.15.el5_8.5.s390x.rpm
x86_64:
libxml2-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-2.6.26-2.1.15.el5_8.5.x86_64.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-debuginfo-2.6.26-2.1.15.el5_8.5.x86_64.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.i386.rpm
libxml2-devel-2.6.26-2.1.15.el5_8.5.x86_64.rpm
libxml2-python-2.6.26-2.1.15.el5_8.5.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386:
libxml2-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-python-2.7.6-8.el6_3.3.i686.rpm
x86_64:
libxml2-2.7.6-8.el6_3.3.i686.rpm
libxml2-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-python-2.7.6-8.el6_3.3.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386:
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-devel-2.7.6-8.el6_3.3.i686.rpm
libxml2-static-2.7.6-8.el6_3.3.i686.rpm
x86_64:
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-devel-2.7.6-8.el6_3.3.i686.rpm
libxml2-devel-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-static-2.7.6-8.el6_3.3.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64:
libxml2-2.7.6-8.el6_3.3.i686.rpm
libxml2-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-python-2.7.6-8.el6_3.3.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64:
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-devel-2.7.6-8.el6_3.3.i686.rpm
libxml2-devel-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-static-2.7.6-8.el6_3.3.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386:
libxml2-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-devel-2.7.6-8.el6_3.3.i686.rpm
libxml2-python-2.7.6-8.el6_3.3.i686.rpm
ppc64:
libxml2-2.7.6-8.el6_3.3.ppc.rpm
libxml2-2.7.6-8.el6_3.3.ppc64.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.ppc.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.ppc64.rpm
libxml2-devel-2.7.6-8.el6_3.3.ppc.rpm
libxml2-devel-2.7.6-8.el6_3.3.ppc64.rpm
libxml2-python-2.7.6-8.el6_3.3.ppc64.rpm
s390x:
libxml2-2.7.6-8.el6_3.3.s390.rpm
libxml2-2.7.6-8.el6_3.3.s390x.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.s390.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.s390x.rpm
libxml2-devel-2.7.6-8.el6_3.3.s390.rpm
libxml2-devel-2.7.6-8.el6_3.3.s390x.rpm
libxml2-python-2.7.6-8.el6_3.3.s390x.rpm
x86_64:
libxml2-2.7.6-8.el6_3.3.i686.rpm
libxml2-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-devel-2.7.6-8.el6_3.3.i686.rpm
libxml2-devel-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-python-2.7.6-8.el6_3.3.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
i386:
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-static-2.7.6-8.el6_3.3.i686.rpm
ppc64:
libxml2-debuginfo-2.7.6-8.el6_3.3.ppc64.rpm
libxml2-static-2.7.6-8.el6_3.3.ppc64.rpm
s390x:
libxml2-debuginfo-2.7.6-8.el6_3.3.s390x.rpm
libxml2-static-2.7.6-8.el6_3.3.s390x.rpm
x86_64:
libxml2-debuginfo-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-static-2.7.6-8.el6_3.3.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
i386:
libxml2-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-devel-2.7.6-8.el6_3.3.i686.rpm
libxml2-python-2.7.6-8.el6_3.3.i686.rpm
x86_64:
libxml2-2.7.6-8.el6_3.3.i686.rpm
libxml2-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-debuginfo-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-devel-2.7.6-8.el6_3.3.i686.rpm
libxml2-devel-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-python-2.7.6-8.el6_3.3.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
Source:
i386:
libxml2-debuginfo-2.7.6-8.el6_3.3.i686.rpm
libxml2-static-2.7.6-8.el6_3.3.i686.rpm
x86_64:
libxml2-debuginfo-2.7.6-8.el6_3.3.x86_64.rpm
libxml2-static-2.7.6-8.el6_3.3.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
Topic
Updated libxml2 packages that fix multiple security issues are nowavailable for Red Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.
Topic
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
Bugs Fixed
822109 - CVE-2011-3102 libxml: An off-by-one out-of-bounds write by XPointer part evaluation
835863 - CVE-2012-2807 libxml2 (64-bit): Multiple integer overflows, leading to DoS or possibly other unspecified impact