N/A - USN-3363-2

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 versions:

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

Ubuntu 14.04 LTS:
imagemagick 8:6.7.7.10-6ubuntu3.9
libmagick++5 8:6.7.7.10-6ubuntu3.9
libmagickcore5 8:6.7.7.10-6ubuntu3.9

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

References:
https://www.ubuntu.com/usn/usn-3363-2
https://www.ubuntu.com/usn/usn-3363-1
https://launchpad.net/bugs/1707015

Package Information:
https://launchpad.net/ubuntu/+source/imagemagick/8:6.8.9.9-7ubuntu5.9
https://launchpad.net/ubuntu/+source/imagemagick/8:6.7.7.10-6ubuntu3.9