The cdf_unpack_summary_info function in cdf.c in the Fileinfo component in PHP before 5.4.29 and 5.5.x before 5.5.13 allows remote attackers to cause a denial of service (performance degradation) by triggering many file_printf calls.
https://support.apple.com/HT204659
https://github.com/file/file/commit/b8acc83781d5a24cc5101e525d15efe0482c280d
https://bugs.php.net/bug.php?id=67328
http://www.securityfocus.com/bid/67759
http://www.php.net/ChangeLog-5.php
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
http://www.debian.org/security/2014/dsa-3021
http://www-01.ibm.com/support/docview.wss?uid=swg21683486
http://support.apple.com/kb/HT6443
http://secunia.com/advisories/60998
http://secunia.com/advisories/59418
http://secunia.com/advisories/59329
http://secunia.com/advisories/59061
http://rhn.redhat.com/errata/RHSA-2014-1766.html
http://rhn.redhat.com/errata/RHSA-2014-1765.html
http://lists.opensuse.org/opensuse-security-announce/2014-07/msg00002.html
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html