Ubuntu: 1949-1: ImageMagick vulnerability
Posted by Benjamin D. Thomas   
Ubuntu ImageMagick could be made to crash or run programs as your login if itopened a specially crafted file.
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Ubuntu Security Notice USN-1949-1
September 10, 2013

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

- Ubuntu 13.04
- Ubuntu 12.10

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:

It was discovered that ImageMagick incorrectly handled decoding GIF image
comments. If a user or automated system using ImageMagick were tricked into
opening a specially crafted GIF 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 13.04:
  libmagick++5                    8:6.7.7.10-5ubuntu2.1
  libmagickcore5                  8:6.7.7.10-5ubuntu2.1

Ubuntu 12.10:
  libmagick++5                    8:6.7.7.10-2ubuntu4.1
  libmagickcore5                  8:6.7.7.10-2ubuntu4.1

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

References:
  http://www.ubuntu.com/usn/usn-1949-1
  CVE-2013-4298

Package Information:
  https://launchpad.net/ubuntu/+source/imagemagick/8:6.7.7.10-5ubuntu2.1
  https://launchpad.net/ubuntu/+source/imagemagick/8:6.7.7.10-2ubuntu4.1