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Gentoo Linux Security Advisory                           GLSA 200606-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: JPEG library: Denial of Service
      Date: June 11, 2006
      Bugs: #130889
        ID: 200606-11

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Synopsis
========

The JPEG library is vulnerable to a Denial of Service.

Background
==========

The JPEG library is able to load, handle and manipulate images in the
JPEG format.

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

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  media-libs/jpeg       < 6b-r7                            >= 6b-r7

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

Tavis Ormandy of the Gentoo Linux Auditing Team discovered that the
vulnerable JPEG library ebuilds compile JPEG without the --maxmem
feature which is not recommended.

Impact
======

By enticing a user to load a specially crafted JPEG image file an
attacker could cause a Denial of Service, due to memory exhaustion.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

JPEG users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/jpeg-6b-r7"

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

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

  http://security.gentoo.org/glsa/glsa-200606-11.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
http://bugs.gentoo.org.

License
=======

Copyright 2006 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