(RHSA-2011:0462) Important: jboss-seam security update

The JBoss Seam 2 framework is an application framework for building web
applications in Java.

It was found that JBoss Seam 2 did not properly block access to JBoss
Expression Language (EL) constructs in page exception handling, allowing
arbitrary Java methods to be executed. A remote attacker could use this
flaw to execute arbitrary code via a specially-crafted URL provided to
certain applications based on the JBoss Seam 2 framework. Note: A properly
configured and enabled Java Security Manager would prevent exploitation of
this flaw. (CVE-2011-1484)

Red Hat would like to thank Martin Kouba from IT SYSTEMS a.s. for reporting
this issue.

All users of JBoss Enterprise Application Platform 4.3.0.CP09 and 5.1.0 as
provided from the Red Hat Customer Portal are advised to install this
update.