https://bugs.gentoo.org/show_bug.cgi?id=488050
http://sourceforge.net/p/graphicsmagick/discussion/250737/thread/20888e8b/
https://secunia.com/advisories/55288/
http://sourceforge.net/p/graphicsmagick/code/ci/1a2d7a38363f7f23b63d626887d22d39c7240144/
https://bugzilla.redhat.com/show_bug.cgi?id=1019085
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=729661