USN-3363-2: ImageMagick regression

Ubuntu Security Notice USN-3363-2

31st July, 2017

imagemagick regression

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

  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

USN-3363-1 caused a regression in ImageMagick.

Software description

  • imagemagick - Image manipulation programs and library

Details

USN-3363-1 fixed vulnerabilities in ImageMagick. The update caused a
regression for certain users when processing images. The problematic
patch has been reverted pending further investigation.

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 version:

Ubuntu 16.04 LTS:
libmagick++-6.q16-5v5 8:6.8.9.9-7ubuntu5.9
imagemagick 8:6.8.9.9-7ubuntu5.9
imagemagick-6.q16 8:6.8.9.9-7ubuntu5.9
libmagickcore-6.q16-2 8:6.8.9.9-7ubuntu5.9
Ubuntu 14.04 LTS:
libmagick++5 8:6.7.7.10-6ubuntu3.9
libmagickcore5 8:6.7.7.10-6ubuntu3.9
imagemagick 8:6.7.7.10-6ubuntu3.9

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

LP: 1707015