[Full-disclosure] [ GLSA 200610-12 ] Apache mod_tcl: Format string vulnerability

[Raphael Marichez]

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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 at 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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