[USN-3142-2] ImageMagick regression

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-3142-2
February 22, 2017

imagemagick regression
==========================================================================

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

- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

USN-3142-1 introduced a regression in ImageMagick.

Software Description:
- imagemagick: Image manipulation programs and library

Details:

USN-3142-1 fixed vulnerabilities in ImageMagick. The security fixes
introduced a regression with text labels and a regression with the text
coder. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that ImageMagick incorrectly handled certain malformed
 image files. 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.

Update instructions:

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

Ubuntu 16.10:
  imagemagick                     8:6.8.9.9-7ubuntu8.3
  imagemagick-6.q16               8:6.8.9.9-7ubuntu8.3
  libmagick++-6.q16-5v5           8:6.8.9.9-7ubuntu8.3
  libmagickcore-6.q16-2           8:6.8.9.9-7ubuntu8.3
  libmagickcore-6.q16-2-extra     8:6.8.9.9-7ubuntu8.3

Ubuntu 16.04 LTS:
  imagemagick                     8:6.8.9.9-7ubuntu5.4
  imagemagick-6.q16               8:6.8.9.9-7ubuntu5.4
  libmagick++-6.q16-5v5           8:6.8.9.9-7ubuntu5.4
  libmagickcore-6.q16-2           8:6.8.9.9-7ubuntu5.4
  libmagickcore-6.q16-2-extra     8:6.8.9.9-7ubuntu5.4

Ubuntu 14.04 LTS:
  imagemagick                     8:6.7.7.10-6ubuntu3.4
  libmagick++5                    8:6.7.7.10-6ubuntu3.4
  libmagickcore5                  8:6.7.7.10-6ubuntu3.4
  libmagickcore5-extra            8:6.7.7.10-6ubuntu3.4

Ubuntu 12.04 LTS:
  imagemagick                     8:6.6.9.7-5ubuntu3.7
  libmagick++4                    8:6.6.9.7-5ubuntu3.7
  libmagickcore4                  8:6.6.9.7-5ubuntu3.7
  libmagickcore4-extra            8:6.6.9.7-5ubuntu3.7

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

References:
  http://www.ubuntu.com/usn/usn-3142-2
  http://www.ubuntu.com/usn/usn-3142-1
  https://launchpad.net/bugs/1589580, https://launchpad.net/bugs/1646485

Package Information:
  https://launchpad.net/ubuntu/+source/imagemagick/8:6.8.9.9-7ubuntu8.3
  https://launchpad.net/ubuntu/+source/imagemagick/8:6.8.9.9-7ubuntu5.4
  https://launchpad.net/ubuntu/+source/imagemagick/8:6.7.7.10-6ubuntu3.4
  https://launchpad.net/ubuntu/+source/imagemagick/8:6.6.9.7-5ubuntu3.7


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