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                                    CERT-Renater

                         Note d'Information No. 2007/VULN499
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DATE                      : 10/12/2007

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running PEAR::MB2.

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Gentoo Linux Security Advisory                           GLSA 200712-05
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                                             http://security.gentoo.org/
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   Severity: Normal
      Title: PEAR::MDB2: Information disclosure
       Date: December 09, 2007
       Bugs: #198446
         ID: 200712-05

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Synopsis
========

A vulnerability when handling database input in PEAR::MDB2 allows
remote attackers to obtain sensitive information.

Background
==========

PEAR::MDB2 is a database abstraction layer for PHP aimed to provide a
common API for all supported relational database management systems. A
LOB ("large object") is a database field holding binary data.

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

     -------------------------------------------------------------------
      Package            /    Vulnerable    /                Unaffected
     -------------------------------------------------------------------
   1  dev-php/PEAR-MDB2     < 2.5.0_alpha1              >= 2.5.0_alpha1

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

priyadi discovered that the request to store a URL string as a LOB is
treated as a request to retrieve and store the contents of the URL.

Impact
======

If an application using PEAR::MDB2 allows input of LOB values via a web
form, remote attackers could use the application as an indirect proxy
or obtain sensitive information, including "file://" URLs local to the
web server.

Workaround
==========

As a workaround, manually filter input before storing it as a LOB in
PEAR::MDB2.

Resolution
==========

All PEAR::MDB2 users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=dev-php/PEAR-MDB2-2.5.0_alpha1"

References
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   [ 1 ] CVE-2007-5934
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5934

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

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

   http://security.gentoo.org/glsa/glsa-200712-05.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 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

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