Gentoo: 201311-06 libxml2: Multiple vulnerabilities
Posted by Benjamin D. Thomas   
Gentoo Multiple vulnerabilities have been found in libxml2, allowing remote attackers to execute arbitrary code or cause Denial of Service.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201311-06
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: libxml2: Multiple vulnerabilities
     Date: November 10, 2013
     Bugs: #434344, #444836, #458430, #458740, #466238, #476438
       ID: 201311-06

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

Multiple vulnerabilities have been found in libxml2, allowing remote
attackers to execute arbitrary code or cause Denial of Service.

Background
==========

libxml2 is the XML C parser and toolkit developed for the Gnome
project.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-libs/libxml2            < 2.9.1-r1               >= 2.9.1-r1

Description
===========

Multiple vulnerabilities have been discovered in libxml2. Please review
the CVE identifiers referenced below for details.

Impact
======

A remote attacker could entice a user to open a specially crafted
document with an application linked against libxml2, possibly resulting
in execution of arbitrary code with the privileges of the process or a
Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libxml2 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.1-r1"

References
==========

[ 1 ] CVE-2012-2871
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2871
[ 2 ] CVE-2012-5134
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-5134
[ 3 ] CVE-2013-0338
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0338
[ 4 ] CVE-2013-1664
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-1664
[ 5 ] CVE-2013-1969
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-1969
[ 6 ] CVE-2013-2877
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2877

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 http://security.gentoo.org/glsa/glsa-201311-06.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License

Copyright 2013 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5