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Gentoo Linux Security Advisory GLSA 200509-19
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http://security.gentoo.org/
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Severity: Normal
Title: PHP: Vulnerabilities in included PCRE and XML-RPC libraries
Date: September 27, 2005
Bugs: #102373
ID: 200509-19
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Synopsis
========
PHP makes use of an affected PCRE library and ships with an affected
XML-RPC library and is therefore potentially vulnerable to remote
execution of arbitrary code.
Background
==========
PHP is a general-purpose scripting language widely used to develop
web-based applications. It can run inside a web server using the
mod_php module or the CGI version of PHP, or can run stand-alone in a
CLI.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-php/php < 4.4.0-r1 *>= 4.3.11-r1
>= 4.4.0-r1
2 dev-php/mod_php < 4.4.0-r2 *>= 4.3.11-r1
>= 4.4.0-r2
3 dev-php/php-cgi < 4.4.0-r2 *>= 4.3.11-r2
>= 4.4.0-r2
-------------------------------------------------------------------
3 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
PHP makes use of a private copy of libpcre which is subject to an
integer overflow leading to a heap overflow (see GLSA 200508-17). It
also ships with an XML-RPC library affected by a script injection
vulnerability (see GLSA 200508-13).
Impact
======
An attacker could target a PHP-based web application that would use
untrusted data as regular expressions, potentially resulting in the
execution of arbitrary code. If web applications make use of the
XML-RPC library shipped with PHP, they are also vulnerable to remote
execution of arbitrary PHP code.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All PHP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose dev-php/php
All mod_php users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose dev-php/mod_php
All php-cgi users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose dev-php/php-cgi
References
==========
[ 1 ] CAN-2005-2491
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2491
[ 2 ] CAN-2005-2498
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2498
[ 3 ] GLSA 200508-13
http://www.gentoo.org/security/en/glsa/glsa-200508-13.xml
[ 4 ] GLSA 200508-17
http://www.gentoo.org/security/en/glsa/glsa-200508-17.xml
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200509-19.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@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2005 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/2.0
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