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Gentoo Linux Security Advisory GLSA 200602-06
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http://security.gentoo.org/
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Severity: Normal
Title: ImageMagick: Format string vulnerability
Date: February 13, 2006
Bugs: #83542
ID: 200602-06

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Synopsis
========

A vulnerability in ImageMagick allows attackers to crash the
application and potentially execute arbitrary code.

Background
==========

ImageMagick is an application suite to manipulate and convert images.
It is often used as a utility backend by web applications like forums,
content management systems or picture galleries.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-gfx/imagemagick < 6.2.5.5 >= 6.2.5.5

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

The SetImageInfo function was found vulnerable to a format string
mishandling. Daniel Kobras discovered that the handling of "%"-escaped
sequences in filenames passed to the function is inadequate. This is a
new vulnerability that is not addressed by GLSA 200503-11.

Impact
======

By feeding specially crafted file names to ImageMagick, an attacker can
crash the program and possibly execute arbitrary code with the
privileges of the user running ImageMagick.

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-6.2.5.5"

References
==========

[ 1 ] CVE-2006-0082
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0082
[ 2 ] GLSA 200503-11
http://www.gentoo.org/security/en/glsa/glsa-200503-11.xml

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

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

http://security.gentoo.org/glsa/glsa-200602-06.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 (at) gentoo (dot) org [email concealed] 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/2.0

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