=========================================================================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:
  https://ubuntu.com/security/notices/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