Integer overflow in coders/icon.c in ImageMagick 6.9.1-3 and later allows remote attackers to cause a denial of service (application crash) via a crafted length value, which triggers a buffer overflow.
https://github.com/ImageMagick/ImageMagick/commit/0f6fc2d5bf8f500820c3dbcf0d23ee14f2d9f734
https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1459747
https://access.redhat.com/errata/RHSA-2016:1237
http://www.securityfocus.com/bid/91025
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html