graphicsmagick - security update

It was discovered that there were two denial of service vulnerabilities
in graphicsmagick, a collection of image processing tools:

• CVE-2016-5240
  Prevent denial-of-service by detecting and rejecting
  negative stroke-dasharray arguments which were resulting in an
  endless loop.
• CVE-2016-5241
  Fix divide-by-zero problem if fill or stroke pattern
  image has zero columns or rows to prevent DoS attack.

For Debian 7 Wheezy, this issue has been fixed in graphicsmagick version
1.3.16-1.1+deb7u3.

We recommend that you upgrade your graphicsmagick packages.