Stack consumption vulnerability in GD in PHP before 5.6.12 allows remote attackers to cause a denial of service via a crafted imagefilltoborder call.
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
http://www.ubuntu.com/usn/USN-2987-1
http://www.debian.org/security/2016/dsa-3587
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://php.net/ChangeLog-5.php
http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.html