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Gentoo Linux Security Advisory                           GLSA 200610-12
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Apache mod_tcl: Format string vulnerability
      Date: October 24, 2006
      Bugs: #151359
        ID: 200610-12

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Synopsis
========

A format string vulnerabilty has been found in Apache mod_tcl, which
could lead to the remote execution of arbitrary code.

Background
==========

Apache mod_tcl is a TCL interpreting module for the Apache 2.x web
server.

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  www-apache/mod_tcl       < 1.0.1                         >= 1.0.1

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

Sparfell discovered format string errors in calls to the set_var
function in tcl_cmds.c and tcl_core.c.

Impact
======

A remote attacker could exploit the vulnerability to execute arbitrary
code with the rights of the user running the Apache server.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All mod_tcl users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apache/mod_tcl-1.0.1"

References
==========

  [ 1 ] CVE-2006-4154
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4154

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

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

  http://security.gentoo.org/glsa/glsa-200610-12.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 2006 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

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