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Ubuntu Security Notice USN-1544-1
August 22, 2012

imagemagick vulnerability

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:

Tom Lane discovered that ImageMagick would not always properly allocate
memory. If a user or automated system using ImageMagick were tricked into
opening a specially crafted PNG 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.

Update instructions:

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

Ubuntu 12.04 LTS:
imagemagick 8:6.6.9.7-5ubuntu3.2
libmagick++4 8:6.6.9.7-5ubuntu3.2

Ubuntu 11.10:
imagemagick 8:6.6.0.4-3ubuntu1.2
libmagick++3 8:6.6.0.4-3ubuntu1.2

Ubuntu 11.04:
imagemagick 7:6.6.2.6-1ubuntu4.2
libmagick++3 7:6.6.2.6-1ubuntu4.2

Ubuntu 10.04 LTS:
imagemagick 7:6.5.7.8-1ubuntu1.3
libmagick++2 7:6.5.7.8-1ubuntu1.3

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

References:
http://www.ubuntu.com/usn/usn-1544-1
CVE-2012-3437

Package Information:
https://launchpad.net/ubuntu/+source/imagemagick/8:6.6.9.7-5ubuntu3.2
https://launchpad.net/ubuntu/+source/imagemagick/8:6.6.0.4-3ubuntu1.2
https://launchpad.net/ubuntu/+source/imagemagick/7:6.6.2.6-1ubuntu4.2
https://launchpad.net/ubuntu/+source/imagemagick/7:6.5.7.8-1ubuntu1.3

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