7.5 - RHSA-2005:320

Problem Description:

Updated ImageMagick packages that fix a format string bug are now available for Red Hat Enterprise Linux 4.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Problem description:

ImageMagick(TM) is an image display and manipulation tool for the X Window System which can read and write multiple image formats.

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.

Additionally, a bug was fixed which caused ImageMagick(TM) to occasionally segfault when writing TIFF images to standard output.

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

4. Solution:

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/

5. Bug IDs fixed (http://bugzilla.redhat.com/):

142045 - Segmentation fault on conversion to TIFF (possible libtiff bug) 150185 - CAN-2005-0397 ImageMagick format string flaw