Apache Xerces for Java (Xerces-J) is a high performance, standardscompliant, validating XML parser written in Java. The xerces-j2 packagesprovide Xerces-J version 2.A resource consumption issue was found in the way Xerces-J handled XMLdeclarations. A remote attacker could use an XML document with a speciallycrafted declaration using a long pseudo-attribute name that, when parsed byan application using Xerces-J, would cause that application to use anexcessive amount of CPU. (CVE-2013-4002)All xerces-j2 users are advised to upgrade to these updated packages, whichcontain a backported patch to correct this issue. Applications using theXerces-J must be restarted for this update to take effect.