Gentoo: ImageMagick Filename handling vulnerability
Posted by Benjamin D. Thomas   
Gentoo A format string vulnerability exists in ImageMagick that may allow an attacker to execute arbitrary code.
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Gentoo Linux Security Advisory                           GLSA 200503-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: ImageMagick: Filename handling vulnerability
      Date: March 06, 2005
      Bugs: #83542
        ID: 200503-11

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Synopsis
========

A format string vulnerability exists in ImageMagick that may allow an
attacker to execute arbitrary code.

Background
==========

ImageMagick is a collection of tools and libraries for manipulating a
wide variety of image formats.

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

    -------------------------------------------------------------------
     Package                /  Vulnerable  /                Unaffected
    -------------------------------------------------------------------
  1  media-gfx/imagemagick      < 6.2.0.4                   >= 6.2.0.4

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

Tavis Ormandy of the Gentoo Linux Security Audit Team has identified a
flaw in the handling of filenames by the ImageMagick utilities.

Impact
======

Successful exploitation may disrupt web applications that depend on
ImageMagick for image processing, potentially executing arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All ImageMagick users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/imagemagick-6.2.0.4"

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

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

  http://security.gentoo.org/glsa/glsa-200503-11.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 2005 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/2.0