Use-after-free vulnerability in the xcf_load_image function in app/xcf/xcf-load.c in GIMP allows remote attackers to cause a denial of service (program crash) or possibly execute arbitrary code via a crafted XCF file.
https://git.gnome.org/browse/gimp/commit/?id=e82aaa4b4ee0703c879e35ea9321fff6be3e9b6f
https://bugzilla.gnome.org/show_bug.cgi?id=767873
http://www.ubuntu.com/usn/USN-3025-1
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.431987
http://www.securitytracker.com/id/1036226
http://www.debian.org/security/2016/dsa-3612
http://rhn.redhat.com/errata/RHSA-2016-2589.html
http://lists.opensuse.org/opensuse-updates/2016-07/msg00005.html