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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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Gentoo Linux Security Advisory                           GLSA 200805-10
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Pngcrush: User-assisted execution of arbitrary code
      Date: May 11, 2008
      Bugs: #219033
        ID: 200805-10

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Synopsis
========

A vulnerability in Pngcrush might result in user-assisted execution of
arbitrary code.

Background
==========

Pngcrush is a multi platform optimizer for PNG (Portable Network
Graphics) files.

Affected packages
=================

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  media-gfx/pngcrush     < 1.6.4-r1                     >= 1.6.4-r1

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

It has been reported that Pngcrush includes a copy of libpng that is
vulnerable to a memory corruption (GLSA 200804-15).

Impact
======

A remote attacker could entice a user to process a specially crafted
PNG image, possibly resulting in the execution of arbitrary code with
the privileges of the user running the application, or a Denial of
Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Pngcrush users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/pngcrush-1.6.4-r1"

References
==========

  [ 1 ] CVE-2008-1382
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1382
  [ 2 ] GLSA 200804-15
        http://www.gentoo.org/security/en/glsa/glsa-200804-15.xml

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

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

  http://security.gentoo.org/glsa/glsa-200805-10.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 2008 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
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