ImageMagick security update

Updated ImageMagick packages that fix a heap based buffer overflow are now
available.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

ImageMagick is an image display and manipulation tool for the X Window
System.

Andrei Nigmatulin discovered a heap based buffer overflow flaw in the
ImageMagick image handler. An attacker could create a carefully crafted
Photoshop Document (PSD) image in such a way that it would cause
ImageMagick to execute arbitrary code when processing the image. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2005-0005 to this issue.

A format string bug was found in the way ImageMagick handles filenames. An
attacker could execute arbitrary code on a victim's machine if they were
able to trick the victim into opening a file with a specially crafted name.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2005-0397 to this issue.

A bug was found in the way ImageMagick handles TIFF tags. It is possible
that a TIFF image file with an invalid tag could cause ImageMagick to
crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2005-0759 to this issue.

A bug was found in ImageMagick's TIFF decoder. It is possible that a
specially crafted TIFF image file could cause ImageMagick to crash. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2005-0760 to this issue.

A bug was found in the way ImageMagick parses PSD files. It is possible
that a specially crafted PSD file could cause ImageMagick to crash. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2005-0761 to this issue.

A heap overflow bug was found in ImageMagick's SGI parser. It is possible
that an attacker could execute arbitrary code by tricking a user into
opening a specially crafted SGI image file. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2005-0762 to
this issue.

Users of ImageMagick should upgrade to these updated packages, which
contain backported patches, and are not vulnerable to these issues.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

145111 - CAN-2005-0005 buffer overflow in ImageMagick
150185 - CAN-2005-0397 ImageMagick format string flaw
150312 - CAN-2005-0759 Denial of Service in .tiff images with invalid TAG
150315 - CAN-2005-0760 Accessing memory outside of image during decoding of TIFF
150323 - CAN-2005-0761 Bug in parsing PSD files
150327 - CAN-2005-0762 Buffer overflow in SGI parser

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0005
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0397
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0759
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0760
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0761
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0762