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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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