Multiple integer overflows in the load_image function in file-pcx.c in the Personal Computer Exchange (PCX) plugin in GIMP 2.6.x and earlier allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PCX image that triggers a heap-based buffer overflow.
https://exchange.xforce.ibmcloud.com/vulnerabilities/67787
https://bugzilla.redhat.com/show_bug.cgi?id=689831
http://security.gentoo.org/glsa/glsa-201209-23.xml
http://git.gnome.org/browse/gimp/commit/?id=a9671395f6573e90316a9d748588c5435216f6ce