Integer overflow in the gdImageCreate function in gd.c in the GD Graphics Library (aka libgd) before 2.0.34RC1, as used in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted image dimensions.
http://github.com/php/php-src/commit/c395c6e5d7e8df37a21265ff76e48fe75ceb5ae6?w=1
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00025.html
http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html
http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
http://rhn.redhat.com/errata/RHSA-2016-2598.html
http://rhn.redhat.com/errata/RHSA-2016-2750.html
https://bugs.php.net/bug.php?id=72446
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731