Description
It was found that, in certain circumstances, it was possible for a
malicious web application to replace the XML parsers used by Apache Tomcat
to process XSLTs for the default servlet, JSP documents, tag library
descriptors (TLDs), and tag plug-in configuration files. The injected XML
parser(s) could then bypass the limits imposed on XML external entities
and/or gain access to the XML files processed for other web applications
deployed on the same Apache Tomcat instance. (CVE-2014-0119)