RHSA-2004:636 - Security Advisory

Topic

Updated ImageMagick packages that fixes a buffer overflow are now available.

Description

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

A buffer overflow flaw was discovered in the ImageMagick image handler.
An attacker could create a carefully crafted image file with an improper
EXIF information 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-2004-0981 to
this issue.

David Eisenstein has reported that our previous fix for CAN-2004-0827, a
heap overflow flaw, was incomplete. An attacker could create a carefully
crafted BMP file in such a way that it could cause ImageMagick to execute
arbitrary code when processing the image. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2004-0827 to
this issue.

Users of ImageMagick should upgrade to these updated packages, which
contain a backported patch, and is not vulnerable to this issue.

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/

Affected Products

• Red Hat Enterprise Linux Server 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 i386
• Red Hat Enterprise Linux Server 2 ia64
• Red Hat Enterprise Linux Server 2 i386
• Red Hat Enterprise Linux Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Workstation 2 ia64
• Red Hat Enterprise Linux Workstation 2 i386
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 i386
• Red Hat Enterprise Linux for IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for Power, big endian 3 ppc

Fixes

• BZ - 130807 - CAN-2004-0827 heap overflow in BMP decoder
• BZ - 138383 - CAN-2004-0981 buffer overflow in ImageMagick's EXIF parser

CVEs

• CVE-2004-0827
• CVE-2004-0981

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=278401