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Gentoo Linux Security Advisory                           GLSA 201301-05
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: bzip2: User-assisted execution of arbitrary code
     Date: January 09, 2013
     Bugs: #338215
       ID: 201301-05

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Synopsis
========

An integer overflow vulnerability has been found in bzip2 and could
result in execution of arbitrary code or Denial of Service.

Background
==========

bzip2 is a high-quality data compressor used extensively by Gentoo
Linux.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-arch/bzip2               < 1.0.6                    >= 1.0.6

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

An integer overflow vulnerability has been discovered in bzip2. Please
review the CVE identifier referenced below for details.

Impact
======

A remote attacker could entice a user to open a specially crafted
compressed file using bzip2, 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 bzip2 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-arch/bzip2-1.0.6"

References
==========

[ 1 ] CVE-2010-0405
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0405

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

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

 http://security.gentoo.org/glsa/glsa-201301-05.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