The JBoss EAP 430CP09 security updates for Red Hat Enterprise Linux 4, Red Hat Enterprise Linux 5 and the Customer Support Portal did not, unlike the erratum text stated, provide a fix for CVE-2010-3862, a Denial-of-Service (DoS) flaw in the jboss-remoting component. A missing patch is considered a security regression, and requires a new CVE name. This regression is assigned CVE-2010-4265. It fixes the same issue as CVE-2010-3862 and is specific to JBoss EAP 430CP09.

The org.jboss.remoting.transport.bisocket.BisocketServerInvoker$SecondaryServerSocketThread.run method in JBoss Remoting 2.2.x before 2.2.3.SP4 and 2.5.x before 2.5.3.SP2 in Red Hat JBoss Enterprise Application Platform (aka JBoss EAP or JBEAP) 4.3 through 4.3.0.CP09, and 5.1.0; and JBoss Enterprise Web Platform (aka JBEWP) 5.1.0; allows remote attackers to cause a denial of service (daemon outage) by establishing a bisocket control connection TCP session, and then not sending any application data.