GraphicsMagick: PSD decoding heap overflow

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200501-37 / GraphicsMagick
Release Date	January 26, 2005
Latest Revision	January 26, 2005: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-gfx/graphicsmagick	< 1.1.5	>= 1.1.5	All supported architectures

Related bugreports: #79336

Synopsis

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

2. Impact Information

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.

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.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All GraphicsMagick users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4. References

Updated January 26, 2005

Summary: This is a Gentoo Linux Security Advisory

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