RHSA-2012:0545 - Security Advisory

Topic

Updated ImageMagick packages that fix three security issues and one bug are
now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

ImageMagick is an image display and manipulation tool for the X Window
System that can read and write multiple image formats.

A flaw was found in the way ImageMagick processed images with malformed
Exchangeable image file format (Exif) metadata. An attacker could create a
specially-crafted image file that, when opened by a victim, would cause
ImageMagick to crash or, potentially, execute arbitrary code.
(CVE-2012-0247)

A denial of service flaw was found in the way ImageMagick processed images
with malformed Exif metadata. An attacker could create a specially-crafted
image file that, when opened by a victim, could cause ImageMagick to enter
an infinite loop. (CVE-2012-0248)

A denial of service flaw was found in the way ImageMagick decoded certain
JPEG images. A remote attacker could provide a JPEG image with
specially-crafted sequences of RST0 up to RST7 restart markers (used to
indicate the input stream to be corrupted), which once processed by
ImageMagick, would cause it to consume excessive amounts of memory and CPU
time. (CVE-2012-0260)

Red Hat would like to thank CERT-FI for reporting CVE-2012-0260. CERT-FI
acknowledges Aleksis Kauppinen, Joonas Kuorilehto, Tuomas Parttimaa and
Lasse Ylivainio of Codenomicon's CROSS project as the original reporters.

This update also fixes the following bug:

• The fix for Red Hat Bugzilla bug 694922, provided by the RHSA-2012:0301

ImageMagick update, introduced a regression. Attempting to use the
"convert" utility to convert a PostScript document could fail with a
"/undefinedfilename" error. With this update, conversion works as expected.
(BZ#804546)

Users of ImageMagick are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. All running
instances of ImageMagick must be restarted for this update to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 789443 - CVE-2012-0247 CVE-2012-0248 ImageMagick: invalid validation of images denial of service
• BZ - 807994 - CVE-2012-0260 ImageMagick: excessive CPU use DoS by processing JPEG images with crafted restart markers

CVEs

• CVE-2012-0247
• CVE-2012-0248
• CVE-2012-0260

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://rhn.redhat.com/errata/RHSA-2012-0301.html