RHSA-2010:0581 - Security Advisory

Topic

Updated tomcat5 and tomcat6 packages that fix one security issue are now
available for JBoss Enterprise Web Server 1.0.1 for Red Hat Enterprise
Linux 4 and 5.

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

Apache Tomcat is a servlet container for the Java Servlet and JavaServer
Pages (JSP) technologies.

A flaw was found in the way Tomcat handled the Transfer-Encoding header in
HTTP requests. A specially-crafted HTTP request could prevent Tomcat from
sending replies, or cause Tomcat to return truncated replies, or replies
containing data related to the requests of other users, for all subsequent
HTTP requests. (CVE-2010-2227)

Users of Tomcat should upgrade to these updated packages, which contain a
backported patch to resolve this issue. Tomcat must be restarted for this
update to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• JBoss Enterprise Web Server 1 for RHEL 5 x86_64
• JBoss Enterprise Web Server 1 for RHEL 5 i386

Fixes

• BZ - 612799 - CVE-2010-2227 tomcat: information leak vulnerability in the handling of 'Transfer-Encoding' header

CVEs

• CVE-2010-2227

References

• http://www.redhat.com/security/updates/classification/#important
• http://tomcat.apache.org/security-5.html
• http://tomcat.apache.org/security-6.html