RHSA-2011:1312 - Security Advisory

Topic

An updated JBoss Enterprise Application Platform 4.3 that fixes one
security issue is now available from the Red Hat Customer Portal as JBoss
Enterprise Application Platform 4.3.0 Cumulative Patch 10.

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.

Description

JBoss Web Services Native is a web service framework included as part of
JBoss Enterprise Application 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 Enterprise Application Platform 4.3 as provided from the
Red Hat Customer Portal are advised to install this update.

Solution

The References section of this erratum contains a download link (you must
log in to download the updated file). Before applying the update, backup
your existing JBoss Enterprise Application Platform installation (including
all applications and configuration files).

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

Affected Products

• JBoss Enterprise Application Platform Text-Only Advisories x86_64

Fixes

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

CVEs

• CVE-2011-1483

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?downloadType=distributions&product=appplatform&version=4.3.0.GA_CP10