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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis:          Important: tomcat6 security and bug fix update
Advisory ID:       RHSA-2011:0335-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-0335.html
Issue date:        2011-03-09
CVE Names:         CVE-2010-4476 CVE-2011-0534 
=====================================================================

1. Summary:

Updated tomcat6 packages that fix two security issues and one bug are now
available for Red Hat Enterprise Linux 6.

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 Enterprise Linux Desktop Optional (v. 6) - noarch
Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch
Red Hat Enterprise Linux Server (v. 6) - noarch
Red Hat Enterprise Linux Server Optional (v. 6) - noarch
Red Hat Enterprise Linux Workstation (v. 6) - noarch
Red Hat Enterprise Linux Workstation Optional (v. 6) - noarch

3. Description:

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

A denial of service flaw was found in the way certain strings were
converted to Double objects. A remote attacker could use this flaw to cause
Tomcat to hang via a specially-crafted HTTP request. (CVE-2010-4476)

A flaw was found in the Tomcat NIO (Non-Blocking I/O) connector. A remote
attacker could use this flaw to cause a denial of service (out-of-memory
condition) via a specially-crafted request containing a large NIO buffer
size request value. (CVE-2011-0534)

This update also fixes the following bug:

* A bug in the "tomcat6" init script prevented additional Tomcat instances
from starting. As well, running "service tomcat6 start" caused
configuration options applied from "/etc/sysconfig/tomcat6" to be
overwritten with those from "/etc/tomcat6/tomcat6.conf". With this update,
multiple instances of Tomcat run as expected. (BZ#676922)

Users of Tomcat should upgrade to these updated packages, which contain
backported patches to correct these issues. Tomcat must be restarted 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
https://access.redhat.com/kb/docs/DOC-11259

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

674336 - CVE-2010-4476 JDK Double.parseDouble Denial-Of-Service
675338 - CVE-2011-0534 tomcat: remote DoS via NIO connector
676922 - Additionally Created Instances of Tomcat  are broken / don't work

6. Package List:

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/tomcat6-6.0.24-24.el6_0.src.rpm

noarch:
tomcat6-6.0.24-24.el6_0.noarch.rpm
tomcat6-admin-webapps-6.0.24-24.el6_0.noarch.rpm
tomcat6-docs-webapp-6.0.24-24.el6_0.noarch.rpm
tomcat6-el-2.1-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-javadoc-6.0.24-24.el6_0.noarch.rpm
tomcat6-jsp-2.1-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-lib-6.0.24-24.el6_0.noarch.rpm
tomcat6-log4j-6.0.24-24.el6_0.noarch.rpm
tomcat6-servlet-2.5-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-webapps-6.0.24-24.el6_0.noarch.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/tomcat6-6.0.24-24.el6_0.src.rpm

noarch:
tomcat6-6.0.24-24.el6_0.noarch.rpm
tomcat6-admin-webapps-6.0.24-24.el6_0.noarch.rpm
tomcat6-docs-webapp-6.0.24-24.el6_0.noarch.rpm
tomcat6-el-2.1-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-javadoc-6.0.24-24.el6_0.noarch.rpm
tomcat6-jsp-2.1-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-lib-6.0.24-24.el6_0.noarch.rpm
tomcat6-log4j-6.0.24-24.el6_0.noarch.rpm
tomcat6-servlet-2.5-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-webapps-6.0.24-24.el6_0.noarch.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/tomcat6-6.0.24-24.el6_0.src.rpm

noarch:
tomcat6-6.0.24-24.el6_0.noarch.rpm
tomcat6-el-2.1-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-jsp-2.1-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-lib-6.0.24-24.el6_0.noarch.rpm
tomcat6-servlet-2.5-api-6.0.24-24.el6_0.noarch.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/tomcat6-6.0.24-24.el6_0.src.rpm

noarch:
tomcat6-admin-webapps-6.0.24-24.el6_0.noarch.rpm
tomcat6-docs-webapp-6.0.24-24.el6_0.noarch.rpm
tomcat6-javadoc-6.0.24-24.el6_0.noarch.rpm
tomcat6-log4j-6.0.24-24.el6_0.noarch.rpm
tomcat6-webapps-6.0.24-24.el6_0.noarch.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/tomcat6-6.0.24-24.el6_0.src.rpm

noarch:
tomcat6-6.0.24-24.el6_0.noarch.rpm
tomcat6-el-2.1-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-jsp-2.1-api-6.0.24-24.el6_0.noarch.rpm
tomcat6-lib-6.0.24-24.el6_0.noarch.rpm
tomcat6-servlet-2.5-api-6.0.24-24.el6_0.noarch.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/tomcat6-6.0.24-24.el6_0.src.rpm

noarch:
tomcat6-admin-webapps-6.0.24-24.el6_0.noarch.rpm
tomcat6-docs-webapp-6.0.24-24.el6_0.noarch.rpm
tomcat6-javadoc-6.0.24-24.el6_0.noarch.rpm
tomcat6-log4j-6.0.24-24.el6_0.noarch.rpm
tomcat6-webapps-6.0.24-24.el6_0.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2010-4476.html
https://www.redhat.com/security/data/cve/CVE-2011-0534.html
https://access.redhat.com/security/updates/classification/#important
http://tomcat.apache.org/security-6.html

8. Contact:

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

Copyright 2011 Red Hat, Inc.
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