[ GLSA 200610-14 ] PHP: Integer overflow

[Raphael Marichez <falco () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200610-14
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                                            http://security.gentoo.org/
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  Severity: High
     Title: PHP: Integer overflow
      Date: October 30, 2006
      Bugs: #150261
        ID: 200610-14

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Synopsis
========

PHP is vulnerable to an integer overflow potentially allowing the
remote execution of arbitrary code.

Background
==========

PHP is a widely-used general-purpose scripting language that is
especially suited for Web development and can be embedded into HTML.

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

    -------------------------------------------------------------------
     Package       /  Vulnerable  /                         Unaffected
    -------------------------------------------------------------------
  1  dev-lang/php     < 5.1.6-r6                          *>= 4.4.4-r6
                                                           >= 5.1.6-r6

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

A flaw in the PHP memory handling routines allows an unserialize() call
to be executed on non-allocated memory due to a previous integer
overflow.

Impact
======

An attacker could execute arbitrary code with the rights of the web
server user or the user running a vulnerable PHP script.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PHP 5.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/php-5.1.6-r6"

All PHP 4.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/php-4.4.4-r6"

References
==========

  [ 1 ] CVE-2006-4812
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4812

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

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

  http://security.gentoo.org/glsa/glsa-200610-14.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 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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