January 2005

ID: 00057
Ref: 53/2005
Date: 24 January 2005:14:27:14
Version: 1

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Title: Gentoo Linux Security Advisory: GLSA 200501-26 - ImageMagick: PSD decoding heap overflow
Abstract: Andrei Nigmatulin discovered that a Photoshop Document (PSD) file with more than 24 layers could trigger a heap overflow.
Vendors affected: Gentoo
Operating systems affected: Gentoo
Applications affected: Gentoo

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Title
=====

Gentoo Linux Security Advisory: GLSA 200501-26 - ImageMagick: PSD
decoding heap overflow

Detail
======

Andrei Nigmatulin discovered that a Photoshop Document (PSD) file
with more than 24 layers could trigger a heap overflow.


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Gentoo Linux Security Advisory GLSA 200501-26
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http://security.gentoo.org/
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Severity: Normal
Title: ImageMagick: PSD decoding heap overflow
Date: January 20, 2005
Bugs: #77932
ID: 200501-26

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Synopsis
========

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

Background
==========

ImageMagick is a collection of tools to read, write and manipulate
images in many formats.

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

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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-gfx/imagemagick < 6.1.8.8 >= 6.1.8.8

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

Andrei Nigmatulin discovered that a Photoshop Document (PSD) file
with more than 24 layers could trigger a heap overflow.

Impact
======

An attacker could potentially design a mailicous PSD image file to
cause arbitrary code execution with the permissions 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-6.1.8.8"

References
==========

[ 1 ] CAN-2005-0005
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0005
[ 2 ] iDEFENSE Advisory
http://www.idefense.com/application/poi/display?id=184&type=vulnerabilities

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

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

http://security.gentoo.org/glsa/glsa-200501-26.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