The org.picketlink.common.util.DocumentUtil.getDocumentBuilderFactory method in PicketLink, as used in Red Hat JBoss Enterprise Application Platform (JBEAP) 5.2.0 and 6.2.4, expands entity references, which allows remote attackers to read arbitrary code and possibly have other unspecified impact via unspecified vectors, related to an XML External Entity (XXE) issue.
https://exchange.xforce.ibmcloud.com/vulnerabilities/94700
http://www.securitytracker.com/id/1030607
http://secunia.com/advisories/60124
http://secunia.com/advisories/60047
http://rhn.redhat.com/errata/RHSA-2015-1888.html
http://rhn.redhat.com/errata/RHSA-2015-0765.html
http://rhn.redhat.com/errata/RHSA-2015-0720.html
http://rhn.redhat.com/errata/RHSA-2015-0675.html
http://rhn.redhat.com/errata/RHSA-2015-0091.html
http://rhn.redhat.com/errata/RHSA-2014-0886.html
http://rhn.redhat.com/errata/RHSA-2014-0885.html