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.
framework.zend.com/security/advisory/ZF2015-06
legalhackers.com/advisories/zend-framework-XXE-vuln.txt
packetstormsecurity.com/files/133068/Zend-Framework-2.4.2-1.12.13-XXE-Injection.html
seclists.org/fulldisclosure/2015/Aug/46
www.debian.org/security/2015/dsa-3340
www.securityfocus.com/bid/76177
lists.fedoraproject.org/pipermail/package-announce/2015-August/164409.html
lists.fedoraproject.org/pipermail/package-announce/2015-August/165147.html
lists.fedoraproject.org/pipermail/package-announce/2015-August/165173.html
www.exploit-db.com/exploits/37765/