graphicsmagick - security update

Several vulnerabilities have been found in the graphicsmagick package
that may lead to denial of service through failed assertions, CPU or
memory usage. Some vulnerabilities may also lead to code execution but
no exploit is currently known.

• CVE-2016-7448
  Utah RLE: Reject truncated/absurd files which caused huge memory
  allocations and/or consumed huge CPU
• CVE-2016-7996
  missing check that the provided colormap is not larger than 256
  entries resulting in potential heap overflow
• CVE-2016-7997
  denial of service via a crash due to an assertion
• CVE-2016-8682
  stack-based buffer overflow in ReadSCTImage (sct.c)
• CVE-2016-8683
  memory allocation failure in ReadPCXImage (pcx.c)
• CVE-2016-8684
  memory allocation failure in MagickMalloc (memory.c)

For Debian 7 Wheezy, these problems have been fixed in version
1.3.16-1.1+deb7u5.

We recommend that you upgrade your graphicsmagick packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: <https://wiki.debian.org/LTS&gt;