There are lots of memory leaks in the GMCommand function in magick/command.c in GraphicsMagick 1.3.26 that will lead to a denial of service attack.
Created GraphicsMagick tracking bugs for this issue:
Affects: epel-all [bug 1488444]
Affects: fedora-all [bug 1475495]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.