RHSA-2016:1328 - Security Advisory

Topic

A security update is now available for Red Hat JBoss Enterprise Application Platform 5.2.0 from the Customer Portal.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Red Hat JBoss Enterprise Application Platform is a platform for Java applications, which integrates the JBoss Application Server with JBoss Hibernate and JBoss Seam.

This asynchronous patch is a security update for JGroups package in Red Hat JBoss Enterprise Application Platform 5.2. More information about this vulnerability is available at: https://access.redhat.com/articles/2360521

Security Fix(es):

• It was found that JGroups did not require necessary headers for encrypt and auth protocols from new nodes joining the cluster. An attacker could use this flaw to bypass security restrictions, and use this vulnerability to send and receive messages within the cluster, leading to information disclosure, message spoofing, or further possible attacks. (CVE-2016-2141)

The CVE-2016-2141 issue was discovered by Dennis Reed (Red Hat).

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied. Also, back up your existing Red
Hat JBoss Enterprise Application Platform 5 installation (including all
applications and configuration files).

The JBoss server process must be restarted for the update to take effect.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258

Affected Products

• JBoss Enterprise Application Platform 5 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 5 for RHEL 6 i386
• JBoss Enterprise Application Platform 5 for RHEL 5 x86_64
• JBoss Enterprise Application Platform 5 for RHEL 5 i386

Fixes

• BZ - 1313589 - CVE-2016-2141 Authorization bypass in JGroups

CVEs

• CVE-2016-2141

References

• http://www.redhat.com/security/updates/classification/#normal