From koon@gentoo.org Tue Sep 27 16:28:04 2005 From: Thierry Carrez To: gentoo-announce@lists.gentoo.org Cc: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com Date: Tue, 27 Sep 2005 22:25:27 +0200 Subject: [Full-disclosure] [ GLSA 200509-19 ] PHP: Vulnerabilities in included PCRE and XML-RPC libraries - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200509-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: PHP: Vulnerabilities in included PCRE and XML-RPC libraries Date: September 27, 2005 Bugs: #102373 ID: 200509-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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@gentoo.org 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 [ Part 1.2, "OpenPGP digital signature" Application/PGP-SIGNATURE ] [ 264bytes. ] [ Unable to print this part. ] [ Part 2: "Attached Text" ] _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/