ImageMagick: EXIF buffer overflow

Background

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

Description

ImageMagick fails to do proper bounds checking when handling image files with EXIF information.

Impact

An attacker could use an image file with specially-crafted EXIF information 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-6.1.3.2"