Synopsis:    Moderate: tomcat6 security and bug fix update
Issue Date:  2011-05-19
CVE Numbers: CVE-2010-4172
              CVE-2011-0013
              CVE-2010-3718


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 
errors such 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.

SL 6.x

   i386:
      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

   x86_64:
      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

- Scientific Linux Development Team