Updated tomcat6 packages that fix three security issues and several bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores,

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

Synopsis:          Moderate: tomcat6 security and bug fix update
Advisory ID:       RHSA-2011:0791-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2011:0791.html
Issue date:        2011-05-19
CVE Names:         CVE-2010-3718 CVE-2010-4172 CVE-2011-0013 
====================================================================
1. Summary:

Updated tomcat6 packages that fix three security issues and several bugs
are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

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.

It was found that web applications could modify the location of the Tomcat
host's work directory. As web applications deployed on Tomcat have read and
write access to this directory, a malicious web application could use this
flaw to trick Tomcat into giving it read and write access to an arbitrary
directory on the file system. (CVE-2010-3718)

A cross-site scripting (XSS) flaw was found in the Manager application,
used for managing web applications on Tomcat. If a remote attacker could
trick a user who is logged into the Manager application into visiting a
specially-crafted URL, the attacker could perform Manager application tasks
with the privileges of the logged in user. (CVE-2010-4172)

A second cross-site scripting (XSS) flaw was found in the Manager
application. A malicious web application could use this flaw to conduct an
XSS attack, leading to arbitrary web script execution with the privileges
of victims who are logged into and viewing Manager application web pages.
(CVE-2011-0013)

This update also fixes the following bugs:

* 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#636997)

* The "/usr/share/java/" directory was missing a symbolic link to the
"/usr/share/tomcat6/bin/tomcat-juli.jar" library. Because this library was
mandatory for certain operations (such as running the Jasper JSP
precompiler), the "build-jar-repository" command was unable to compose a
valid classpath. With this update, the missing symbolic link has been
added. (BZ#661244)

* Previously, the "tomcat6" init script failed to start Tomcat with a "This
account is currently not available." message when Tomcat was configured to
run under a user that did not have a valid shell configured as a login
shell. This update modifies the init script to work correctly regardless of
the daemon user's login shell. Additionally, these new tomcat6 packages now
set "/sbin/nologin" as the login shell for the "tomcat" user upon
installation, as recommended by deployment best practices. (BZ#678671)

* Some standard Tomcat directories were missing write permissions for the
"tomcat" group, which could cause certain applications to fail with errorssuch as "No output folder". This update adds write permissions for the
"tomcat" group to the affected directories. (BZ#643809)

* The "/usr/sbin/tomcat6" wrapper script used a hard-coded path to the
"catalina.out" file, which may have caused problems (such as for logging
init script output) if Tomcat was being run with a user other than "tomcat"
and with CATALINA_BASE set to a directory other than the default.
(BZ#695284, BZ#697504)

* Stopping Tomcat could have resulted in traceback errors being logged to
"catalina.out" when certain web applications were deployed. (BZ#698624)

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/):

636997 - Additionally Created Instances of Tomcat  are broken / don't work
643809 - Bad permissions on tomcat folders656246 - CVE-2010-4172 tomcat: cross-site-scripting vulnerability in the manager application
661244 - Missing tomcat6-juli link in /usr/share/java
675786 - CVE-2011-0013 tomcat: XSS vulnerability in HTML Manager interface
675792 - CVE-2010-3718 tomcat: file permission bypass flaw
678671 - tomcat user requires login shell
695284 - catalina.out path hard-coded in /usr/sbin/tomcat6
697504 - tomcat6-6.0.wrapper redirects init script output to wrong place

6. Package List:

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

Source:

noarch:
tomcat6-6.0.24-33.el6.noarch.rpm
tomcat6-admin-webapps-6.0.24-33.el6.noarch.rpm
tomcat6-docs-webapp-6.0.24-33.el6.noarch.rpm
tomcat6-el-2.1-api-6.0.24-33.el6.noarch.rpm
tomcat6-javadoc-6.0.24-33.el6.noarch.rpm
tomcat6-jsp-2.1-api-6.0.24-33.el6.noarch.rpm
tomcat6-lib-6.0.24-33.el6.noarch.rpm
tomcat6-servlet-2.5-api-6.0.24-33.el6.noarch.rpm
tomcat6-webapps-6.0.24-33.el6.noarch.rpm

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

Source:

noarch:
tomcat6-6.0.24-33.el6.noarch.rpm
tomcat6-admin-webapps-6.0.24-33.el6.noarch.rpm
tomcat6-docs-webapp-6.0.24-33.el6.noarch.rpm
tomcat6-el-2.1-api-6.0.24-33.el6.noarch.rpm
tomcat6-javadoc-6.0.24-33.el6.noarch.rpm
tomcat6-jsp-2.1-api-6.0.24-33.el6.noarch.rpm
tomcat6-lib-6.0.24-33.el6.noarch.rpm
tomcat6-servlet-2.5-api-6.0.24-33.el6.noarch.rpm
tomcat6-webapps-6.0.24-33.el6.noarch.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

noarch:
tomcat6-6.0.24-33.el6.noarch.rpm
tomcat6-el-2.1-api-6.0.24-33.el6.noarch.rpm
tomcat6-jsp-2.1-api-6.0.24-33.el6.noarch.rpm
tomcat6-lib-6.0.24-33.el6.noarch.rpm
tomcat6-servlet-2.5-api-6.0.24-33.el6.noarch.rpm

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

Source:

noarch:
tomcat6-admin-webapps-6.0.24-33.el6.noarch.rpm
tomcat6-docs-webapp-6.0.24-33.el6.noarch.rpm
tomcat6-javadoc-6.0.24-33.el6.noarch.rpm
tomcat6-webapps-6.0.24-33.el6.noarch.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

noarch:
tomcat6-6.0.24-33.el6.noarch.rpm
tomcat6-el-2.1-api-6.0.24-33.el6.noarch.rpm
tomcat6-jsp-2.1-api-6.0.24-33.el6.noarch.rpm
tomcat6-lib-6.0.24-33.el6.noarch.rpm
tomcat6-servlet-2.5-api-6.0.24-33.el6.noarch.rpm

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

Source:

noarch:
tomcat6-admin-webapps-6.0.24-33.el6.noarch.rpm
tomcat6-docs-webapp-6.0.24-33.el6.noarch.rpm
tomcat6-javadoc-6.0.24-33.el6.noarch.rpm
tomcat6-webapps-6.0.24-33.el6.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://access.redhat.com/security/cve/CVE-2010-3718
https://access.redhat.com/security/cve/CVE-2010-4172
https://access.redhat.com/security/cve/CVE-2011-0013
https://access.redhat.com/security/updates/classification/#moderate
https://tomcat.apache.org/security-6.html

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2011 Red Hat, Inc.
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