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[RHSA-2010:0693-01] Important: tomcat5 security update



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

Synopsis:          Important: tomcat5 security update
Advisory ID:       RHSA-2010:0693-01
Product:           Red Hat Certificate System
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0693.html
Issue date:        2010-09-10
CVE Names:         CVE-2009-2693 CVE-2009-2902 CVE-2010-2227 
=====================================================================

1. Summary:

Updated tomcat5 packages that fix three security issues are now available
for Red Hat Certificate System 7.3.

The Red Hat Security Response Team has rated this update as having
important 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.

2. Relevant releases/architectures:

Red Hat Certificate System 7.3 for 4AS - noarch
Red Hat Certificate System 7.3 for 4ES - noarch

3. 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)

This erratum fixes two additional security flaws in Tomcat. In a typical
operating environment, Tomcat is not exposed to users of Red Hat
Certificate System in a vulnerable manner. These fixes will reduce risk in
unique Certificate System environments. (CVE-2009-2693, CVE-2009-2902)

Users of Red Hat Certificate System 7.3 should upgrade to these updated
tomcat5 packages, which contain backported patches to correct these issues.
After installing the updated packages, the Red Hat Certificate System CA
(rhpki-ca), DRM (rhpki-kra), OCSP (rhpki-ocsp), and TKS (rhpki-tks)
subsystems must be restarted ("/etc/init.d/[instance-name] restart") for
this update to take effect.

4. 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

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

559738 - CVE-2009-2693 tomcat: unexpected file deletion and/or alteration
559761 - CVE-2009-2902 tomcat: unexpected file deletion in work directory
612799 - CVE-2010-2227 tomcat: information leak vulnerability in the handling of 'Transfer-Encoding' header

6. Package List:

Red Hat Certificate System 7.3 for 4AS:

Source:
tomcat5-5.5.23-0jpp_4rh.19.src.rpm

noarch:
tomcat5-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-common-lib-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-jasper-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-jsp-2.0-api-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-server-lib-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-servlet-2.4-api-5.5.23-0jpp_4rh.19.noarch.rpm

Red Hat Certificate System 7.3 for 4ES:

Source:
tomcat5-5.5.23-0jpp_4rh.19.src.rpm

noarch:
tomcat5-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-common-lib-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-jasper-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-jsp-2.0-api-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-server-lib-5.5.23-0jpp_4rh.19.noarch.rpm
tomcat5-servlet-2.4-api-5.5.23-0jpp_4rh.19.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2009-2693.html
https://www.redhat.com/security/data/cve/CVE-2009-2902.html
https://www.redhat.com/security/data/cve/CVE-2010-2227.html
http://www.redhat.com/security/updates/classification/#important
http://tomcat.apache.org/security-5.html

8. Contact:

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

Copyright 2010 Red Hat, Inc.
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