Ubuntu Security Notice USN-1435-1

1st May, 2012

imagemagick vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 12.04 LTS
• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.04 LTS

Summary

ImageMagick could be made to crash or run programs as your login if it opened a specially crafted file.

Software description

• imagemagick - Image manipulation programs and library

Details

Joonas Kuorilehto and Aleksis Kauppinen discovered that ImageMagick
incorrectly handled certain ResolutionUnit tags. If a user or automated
system using ImageMagick were tricked into opening a specially crafted
image, an attacker could exploit this to cause a denial of service or
possibly execute code with the privileges of the user invoking the program.
(CVE-2012-0247, CVE-2012-1185)

Joonas Kuorilehto and Aleksis Kauppinen discovered that ImageMagick
incorrectly handled certain IFD structures. If a user or automated
system using ImageMagick were tricked into opening a specially crafted
image, an attacker could exploit this to cause a denial of service.
(CVE-2012-0248, CVE-2012-1186)

Aleksis Kauppinen, Joonas Kuorilehto and Tuomas Parttimaa discovered that
ImageMagick incorrectly handled certain JPEG EXIF tags. If a user or
automated system using ImageMagick were tricked into opening a specially
crafted image, an attacker could exploit this to cause a denial of service.
(CVE-2012-0259)

It was discovered that ImageMagick incorrectly handled certain JPEG EXIF
tags. If a user or automated system using ImageMagick were tricked into
opening a specially crafted image, an attacker could exploit this to cause
a denial of service or possibly execute code with the privileges of the
user invoking the program. (CVE-2012-1610)

Aleksis Kauppinen, Joonas Kuorilehto and Tuomas Parttimaa discovered that
ImageMagick incorrectly handled certain TIFF EXIF tags. If a user or
automated system using ImageMagick were tricked into opening a specially
crafted image, an attacker could exploit this to cause a denial of service
or possibly execute code with the privileges of the user invoking the
program. (CVE-2012-1798)

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 12.04 LTS:

libmagick++4 8:6.6.9.7-5ubuntu3.1

imagemagick 8:6.6.9.7-5ubuntu3.1

Ubuntu 11.10:

imagemagick 8:6.6.0.4-3ubuntu1.1

libmagick++3 8:6.6.0.4-3ubuntu1.1

Ubuntu 11.04:

imagemagick 7:6.6.2.6-1ubuntu4.1

libmagick++3 7:6.6.2.6-1ubuntu4.1

Ubuntu 10.04 LTS:

imagemagick 7:6.5.7.8-1ubuntu1.2

libmagick++2 7:6.5.7.8-1ubuntu1.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References

CVE-2012-0247, CVE-2012-0248, CVE-2012-0259, CVE-2012-1185, CVE-2012-1186, CVE-2012-1610, CVE-2012-1798