Heap-based buffer overflow in the read_channel_data function in file-psp.c in the Paint Shop Pro (PSP) plugin in GIMP 2.6.11 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a PSP_COMP_RLE (aka RLE compression) image file that begins a long run count at the end of the image. NOTE: some of these details are obtained from third party information.
http://openwall.com/lists/oss-security/2011/01/03/2
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=608497
https://bugzilla.redhat.com/show_bug.cgi?id=666793
http://openwall.com/lists/oss-security/2011/01/04/7
http://www.vupen.com/english/advisories/2011/0016
http://secunia.com/advisories/42771
http://www.redhat.com/support/errata/RHSA-2011-0837.html
http://www.redhat.com/support/errata/RHSA-2011-0838.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:103
http://www.redhat.com/support/errata/RHSA-2011-0839.html
http://secunia.com/advisories/44750
http://secunia.com/advisories/50737
http://security.gentoo.org/glsa/glsa-201209-23.xml
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html