Use-after-free vulnerability in ext/spl/spl_dllist.c in the SPL component in PHP through 5.5.14 allows context-dependent attackers to cause a denial of service or possibly have unspecified other impact via crafted iterator usage within applications in certain web-hosting environments.
lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
lists.opensuse.org/opensuse-updates/2014-07/msg00035.html
lists.opensuse.org/opensuse-updates/2014-09/msg00046.html
rhn.redhat.com/errata/RHSA-2014-1326.html
rhn.redhat.com/errata/RHSA-2014-1327.html
rhn.redhat.com/errata/RHSA-2014-1765.html
rhn.redhat.com/errata/RHSA-2014-1766.html
secunia.com/advisories/54553
secunia.com/advisories/59831
secunia.com/advisories/60696
www-01.ibm.com/support/docview.wss?uid=swg21683486
www.debian.org/security/2014/dsa-3008
www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
bugs.php.net/bug.php?id=67538
support.apple.com/HT204659