RHSA-2012:0544 - Security Advisory

Topic

Updated ImageMagick packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 6.

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)

It was found that ImageMagick utilities tried to load ImageMagick
configuration files from the current working directory. If a user ran an
ImageMagick utility in an attacker-controlled directory containing a
specially-crafted ImageMagick configuration file, it could cause the
utility to execute arbitrary code. (CVE-2010-4167)

An integer overflow flaw was found in the way ImageMagick processed
certain Exif tags with a large components count. An attacker could create
a specially-crafted image file that, when opened by a victim, could cause
ImageMagick to access invalid memory and crash. (CVE-2012-0259)

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)

An out-of-bounds buffer read flaw was found in the way ImageMagick
processed certain TIFF image files. A remote attacker could provide a TIFF
image with a specially-crafted Exif IFD value (the set of tags for
recording Exif-specific attribute information), which once opened by
ImageMagick, would cause it to crash. (CVE-2012-1798)

Red Hat would like to thank CERT-FI for reporting CVE-2012-0259,
CVE-2012-0260, and CVE-2012-1798. CERT-FI acknowledges Aleksis Kauppinen,
Joonas Kuorilehto, Tuomas Parttimaa and Lasse Ylivainio of Codenomicon's
CROSS project as the original reporters.

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 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.2 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.2 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 i386
• Red Hat Storage 2.0 x86_64
• Red Hat Gluster Storage Server for On-premise 2.0 x86_64
• Red Hat Storage for Public Cloud (via RHUI) 2.0 x86_64
• Red Hat Enterprise Linux Server - AUS 6.2 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 652860 - CVE-2010-4167 ImageMagick: configuration files read from $CWD may allow arbitrary code execution
• BZ - 789443 - CVE-2012-0247 CVE-2012-0248 ImageMagick: invalid validation of images denial of service
• BZ - 807993 - CVE-2012-0259 ImageMagick: Out-of heap-based buffer read by processing crafted JPEG EXIF header tag value
• BZ - 807994 - CVE-2012-0260 ImageMagick: excessive CPU use DoS by processing JPEG images with crafted restart markers
• BZ - 807997 - CVE-2012-1798 ImageMagick: Out-of-bounds buffer read by copying image bytes for TIFF images with crafted TIFF EXIF IFD value

CVEs

• CVE-2010-4167
• CVE-2012-0247
• CVE-2012-0248
• CVE-2012-0260
• CVE-2012-0259
• CVE-2012-1798

References

• https://access.redhat.com/security/updates/classification/#moderate