[ GLSA 200712-05 ] PEAR::MDB2: Information disclosure

From: Pierre-Yves Rofes <py@gentoo.org>
To: gentoo-announce@gentoo.org
Cc: full-disclosure@lists.grok.org.uk,bugtraq@securityfocus.com,security-alerts@linuxsecurity.com
Subject: [ GLSA 200712-05 ] PEAR::MDB2: Information disclosure
Date:


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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
==========

  [ 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@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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