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.