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Gentoo Linux Security Advisory                           GLSA 200503-35
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Smarty: Template vulnerability
      Date: March 30, 2005
      Bugs: #86488
        ID: 200503-35

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Synopsis
========

Smarty's "Template security" feature can be bypassed, potentially
allowing a remote attacker to execute arbitrary PHP code.

Background
==========

Smarty is a template engine for PHP. The "template security" feature of
Smarty is designed to help reduce the risk of a system compromise when
you have untrusted parties editing templates.

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

    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  dev-php/smarty       < 2.6.8                             >= 2.6.8

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

A vulnerability has been discovered within the regex_replace modifier
of the Smarty templates when allowing access to untrusted users.

Impact
======

This issue may allow a remote attacker to bypass the "template
security" feature of Smarty, and execute arbitrary PHP code.

Workaround
==========

Do not grant template access to untrusted users.

Resolution
==========

All Smarty users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-php/smarty-2.6.8"

References
==========

  [ 1 ] Smarty ChangeLog
        http://smarty.php.net/misc/NEWS

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

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

  http://security.gentoo.org/glsa/glsa-200503-35.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 2005 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/2.0