ImageMagick: PSD decoding heap overflow

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200501-26 / imagemagick
Release Date	January 20, 2005
Latest Revision	January 20, 2005: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-gfx/imagemagick	< 6.1.8.8	>= 6.1.8.8	All supported architectures

Related bugreports: #77932

Synopsis

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

2. Impact Information

Background

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

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.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All ImageMagick users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/imagemagick-6.1.8.8"

4. References

Updated January 20, 2005

Summary: This is a Gentoo Linux Security Advisory

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