CVE-2013-4517
Apache Santuario XML Security for Java before 1.5.6, when applying Transforms, allows remote attackers to cause a denial of service (memory consumption) via crafted Document Type Definitions (DTDs), related to signatures.
Date published : 2014-01-10
http://www.securityfocus.com/bid/64437
http://packetstormsecurity.com/files/124554/Java-XML-Signature-Denial-Of-Service-Attack.html