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Gentoo Linux Security Advisory GLSA 200501-37
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http://security.gentoo.org/
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Severity: Normal
Title: GraphicsMagick: PSD decoding heap overflow
Date: January 26, 2005
Bugs: #79336
ID: 200501-37

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Synopsis
=======

GraphicsMagick is vulnerable to a heap overflow when decoding Photoshop Document (PSD) files, which could lead to arbitrary code execution.



Background
=========

GraphicsMagick is a collection of tools to read, write and manipulate images in many formats. GraphicsMagick is originally derived from ImageMagick 5.5.2.

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

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Package / Vulnerable / Unaffected
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1 media-gfx/graphicsmagick < 1.1.5 >= 1.1.5

Description
==========

Andrei Nigmatulin discovered that handling a Photoshop Document (PSD) file with more than 24 layers in ImageMagick could trigger a heap overflow (GLSA 200501-26). GraphicsMagick is based on the same code and therefore suffers from the same flaw.

Impact
=====

An attacker could potentially design a malicious PSD image file to cause arbitrary code execution with the permissions of the user running GraphicsMagick.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All GraphicsMagick users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/graphicsmagick-1.1.5"

References
=========

[ 1 ] CAN-2005-0005
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0005
[ 2 ] GLSA 200501-26
http://www.gentoo.org/security/en/glsa/glsa-200501-26.xml

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

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

http://security.gentoo.org/glsa/glsa-200501-37.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