- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201209-13
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: libjpeg-turbo: User-assisted execution of arbitrary code
     Date: September 26, 2012
     Bugs: #426938
       ID: 201209-13

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

Synopsis
=======
A vulnerability in libjpeg-turbo could result in execution of arbitrary
code or Denial of Service.

Background
=========
libjpeg-turbo accelerates JPEG compression and decompression.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/libjpeg-turbo
                                  < 1.2.1                    >= 1.2.1

Description
==========
A vulnerability in the get_sos() function in jdmarker.c could cause a
heap-based buffer overflow.

Impact
=====
A remote attacker could entice a user to open a specially crafted JPEG
file in an application linked against libjpeg-turbo, possibly resulting
in the remote execution of arbitrary code with the permissions of the
user running the application, or Denial of Service.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All libjpeg-turbo users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/libjpeg-turbo-1.2.1"

Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying some of these
packages.

References
=========
[ 1 ] CVE-2012-2806
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2806

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

 https://security.gentoo.org/glsa/201209-13

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 2012 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.

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