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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: JBoss Communications Platform 1.2.11 and 5.1.1 security update
Advisory ID:       RHSA-2011:1308-01
Product:           JBoss Enterprise Middleware
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-1308.html
Issue date:        2011-09-15
CVE Names:         CVE-2011-1483 
=====================================================================

1. Summary:

An updated JBoss Web Services Native component for JBoss Communications
Platform 1.2.11 and 5.1.1 that fixes one security issue is now available
from the Red Hat Customer Portal.

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.

2. Description:

JBoss Web Services Native is a web service framework included as part of
JBoss Communications Platform. It implements the JAX-WS specification.

It was found that JBoss Web Services Native did not properly protect
against recursive entity resolution when processing Document Type
Definitions (DTD). A remote attacker could exploit this flaw by sending a
specially-crafted HTTP POST request to a deployed web service, causing
excessive CPU and memory consumption on the system hosting that service. If
the attack is repeated to consume all available network sockets, the server
will become unavailable. (CVE-2011-1483)

All users of JBoss Communications Platform 1.2.11 and 5.1.1 as provided
from the Red Hat Customer Portal are advised to install this update.

3. Solution:

The References section of this erratum contains download links (you must
log in to download the update). Before applying the update, backup your
existing JBoss Communications Platform installation (including its
databases, applications, configuration files, and so on).

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

4. Bugs fixed (http://bugzilla.redhat.com/):

692584 - CVE-2011-1483 JBossWS remote Denial of Service

5. References:

https://www.redhat.com/security/data/cve/CVE-2011-1483.html
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?downloadType=securityPatches&product=communications.platform&version=1.2.11+GA
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=communications.platform&downloadType=securityPatches&version=5.1.1+GA

6. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2011 Red Hat, Inc.
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