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Gentoo Linux Security Advisory                           GLSA 200703-16
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Apache JK Tomcat Connector: Remote execution of arbitrary
            code
      Date: March 16, 2007
      Bugs: #169433
        ID: 200703-16

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Synopsis
========

The Apache Tomcat Connector (mod_jk) contains a buffer overflow
vulnerability that could result in the remote execution of arbitrary
code.

Background
==========

The Apache HTTP server is a very widely used web server. mod_jk
provides the JK module for connecting Tomcat and Apache using the ajp13
protocol.

Affected packages
=================

    -------------------------------------------------------------------
     Package            /   Vulnerable   /                  Unaffected
    -------------------------------------------------------------------
  1  www-apache/mod_jk      < 1.2.21-r1                   >= 1.2.21-r1

Description
===========

ZDI reported an unsafe memory copy in mod_jk that was discovered by an
anonymous researcher in the map_uri_to_worker function of
native/common/jk_uri_worker_map.c .

Impact
======

A remote attacker can send a long URL request to an Apache server using
Tomcat. That can trigger the vulnerability and lead to a stack-based
buffer overflow, which could result in the execution of arbitrary code
with the permissions of the Apache user.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Apache Tomcat users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apache/mod_jk-1.2.21-r1"

References
==========

  [ 1 ] CVE-2007-0774
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0774

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200703-16.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5