Issued:
2016-01-21
Updated:
2016-01-21

RHSA-2016:0062 - Moderate: Red Hat JBoss Web Server 2.1.0 security update

Synopsis

Moderate: Red Hat JBoss Web Server 2.1.0 security update

Type/Severity

Security Advisory Moderate

Topic

An update for Red Hat JBoss Web Server 2.1.0 that fixes four security issues is now available from the Red Hat Customer Portal.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

[Updated 15th February 2018] Previously, this erratum stated that CVE-2012-1148 was fixed .This was incorrect;the erratum text has now been modified to reflect this.

Description

Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat Connector (mod_jk), JBoss HTTP Connector (mod_cluster), Hibernate, and the Tomcat Native library.

Multiple flaws were found in the way httpd parsed HTTP requests and responses using chunked transfer encoding. A remote attacker could use these flaws to create a specially crafted request, which httpd would decode differently from an HTTP proxy software in front of it, possibly leading to HTTP request smuggling attacks. (CVE-2015-3183)

A denial of service flaw was found in the implementation of hash arrays in Expat. An attacker could use this flaw to make an application using Expat consume an excessive amount of CPU time by providing a specially-crafted XML file that triggers multiple hash function collisions. To mitigate this issue, randomization has been added to the hash function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2012-0876)

A flaw was found in the way httpd handled HTTP Trailer headers when processing requests using chunked encoding. A malicious client could use Trailer headers to set additional HTTP headers after header processing was performed by other modules. This could, for example, lead to a bypass of header restrictions defined with mod_headers. (CVE-2013-5704)

All users of Red Hat JBoss Web Server 2.1.0 as provided from the Red Hat Customer Portal are advised to apply this update. The Red Hat JBoss Web Server process must be restarted for the update to take effect.

Solution

The References section of this erratum contains a download link (you must log in to download the update). Before applying the update, back up your existing Red Hat JBoss Web Server installation (including all applications and configuration files).

Affected Products

ProductVersionArch
JBoss Enterprise Web ServerText-Only Advisoriesx86_64

Fixes

CVEs

References

Additional information