Updated jbossweb packages that fix one security issue are now available for JBoss Enterprise Application Platform 4.2, 4.3, and 5.1, for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
JBoss Web Server is the web container, based on Apache Tomcat, in JBoss Enterprise Application Platform. It provides a single deployment platform for the JavaServer Pages (JSP) and Java Servlet technologies. A denial of service flaw was found in the way certain strings were converted to Double objects. A remote attacker could use this flaw to cause JBoss Web Server to hang via a specially-crafted HTTP request. (CVE-2010-4476) Users of JBoss Web Server should upgrade to these updated packages, which contain a backported patch to correct this issue. The JBoss server process must be restarted for this update to take effect.