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.Referenceshttp://rhn.redhat.com/errata/RHSA-2014-1728.htmlhttp://rhn.redhat.com/errata/RHSA-2014-1726.htmlhttp://rhn.redhat.com/errata/RHSA-2014-0170.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0675.htmlhttp://osvdb.org/101169http://rhn.redhat.com/errata/RHSA-2015-0850.htmlhttp://rhn.redhat.com/errata/RHSA-2014-0195.htmlhttps://www.tenable.com/security/tns-2018-15https://exchange.xforce.ibmcloud.com/vulnerabilities/89891http://rhn.redhat.com/errata/RHSA-2014-1727.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0851.htmlhttp://seclists.org/fulldisclosure/2013/Dec/169http://www.securitytracker.com/id/1029524http://rhn.redhat.com/errata/RHSA-2014-0172.htmlhttp://santuario.apache.org/secadv.data/cve-2013-4517.txt.aschttp://rhn.redhat.com/errata/RHSA-2014-0171.htmlhttp://packetstormsecurity.com/files/124554/Java-XML-Signature-Denial-Of-Service-Attack.htmlhttp://www.securityfocus.com/bid/64437http://rhn.redhat.com/errata/RHSA-2014-1725.htmlhttp://secunia.com/advisories/55639https://lists.apache.org/thread.html/680e6938b6412e26d5446054fd31de2011d33af11786b989127d1cc3%40%3Ccommits.santuario.apache.org%3Ehttps://lists.apache.org/thread.html/r1c07a561426ec5579073046ad7f4207cdcef452bb3100abaf908e0cd%40%3Ccommits.santuario.apache.org%3E