=========================================================================Ubuntu Security Notice USN-3101-1
October 12, 2016

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

- Ubuntu 16.04 LTS

Summary:

Tracker could be made to crash if it opened a specially crafted file.

Software Description:
- tracker: metadata database, indexer and search tool

Details:

It was discovered that Tracker incorrectly handled certain malformed GIF
images. If a user or automated system were tricked into downloading a
specially-crafted GIF image, Tracker could crash, resulting in a denial of
service.

Update instructions:

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

Ubuntu 16.04 LTS:
  tracker-extract                 1.6.2-0ubuntu1.1

After a standard system update you need to restart your session to make
all the necessary changes.

References:
  
  https://bugs.launchpad.net/ubuntu-gnome/+bug/1178402

Package Information:
  https://launchpad.net/ubuntu/+source/tracker/1.6.2-0ubuntu1.1