U radu programskog paketa libjpeg-turbo uočen je sigurnosni nedostatak koji udaljenim napadačima omogućuje pokretanje proizvoljnog programskog koda ili izvođenje DoS napada.

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Gentoo Linux Security Advisory                           GLSA 201209-13
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: libjpeg-turbo: User-assisted execution of arbitrary code
     Date: September 26, 2012
     Bugs: #426938
       ID: 201209-13

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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:

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

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