JBoss Web is the web container, based on Apache Tomcat, in Red Hat JBoss Enterprise Application Platform. It provides a single deployment platform for the JavaServer Pages (JSP) and Java Servlet technologies.
A flaw was found in the way the DiskFileItem class handled NULL characters in file names. A remote attacker able to supply a serialized instance of the DiskFileItem class, which will be deserialized on a server, could use this flaw to write arbitrary content to any location on the server that is accessible to the user running the application server process. (CVE-2013-2185)
Warning: Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.
All users of Red Hat JBoss Enterprise Application Platform 6.1.0 on Red Hat Enterprise Linux 5 and 6 are advised to upgrade to this updated package. The JBoss server process must be restarted for the update to take effect.