The Zend_Xml_Security::scan in ZendXml before 1.0.1 and Zend Framework before 1.12.14, 2.x before 2.4.6, and 2.5.x before 2.5.2, when running under PHP-FPM in a threaded environment, allows remote attackers to bypass security checks and conduct XML external entity (XXE) and XML entity expansion (XEE) attacks via multibyte encoded characters.
http://www.debian.org/security/2015/dsa-3340
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165173.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165147.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/164409.html