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Gentoo: PHP Toolkit Data disclosure and Denial of Service Print E-mail
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Posted by Benjamin D. Thomas   
Gentoo PHP Toolkit does not quote parameters, allowing for PHP source code disclosure on Apache, and a Denial of Service.
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Gentoo Linux Security Advisory                           GLSA 200804-19
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: PHP Toolkit: Data disclosure and Denial of Service
      Date: April 17, 2008
      Bugs: #209535
        ID: 200804-19

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Synopsis
========

PHP Toolkit does not quote parameters, allowing for PHP source code
disclosure on Apache, and a Denial of Service.

Background
==========

PHP Toolkit is a utility to manage parallel installations of PHP within
Gentoo. It is executed by the PHP ebuilds at setup.

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

    -------------------------------------------------------------------
     Package                /  Vulnerable  /                Unaffected
    -------------------------------------------------------------------
  1  app-admin/php-toolkit       < 1.0.1                      >= 1.0.1

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

Toni Arnold, David Sveningsson, Michal Bartoszkiewicz, and Joseph
reported that php-select does not quote parameters passed to the "tr"
command, which could convert the "-D PHP5" argument in the
"APACHE2_OPTS" setting in the file /etc/conf.d/apache2 to lower case.

Impact
======

An attacker could entice a system administrator to run "emerge php" or
call "php-select -t apache2 php5" directly in a directory containing a
lower case single-character named file, which would prevent Apache from
loading mod_php and thereby disclose PHP source code and cause a Denial
of Service.

Workaround
==========

Do not run "emerge" or "php-select" from a working directory which
contains a lower case single-character named file.

Resolution
==========

All PHP Toolkit users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-admin/php-toolkit-1.0.1"

References
==========

  [ 1 ] CVE-2008-1734
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1734

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

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

  http://security.gentoo.org/glsa/glsa-200804-19.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 2008 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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