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[ GLSA 200709-16 ] Lighttpd: Buffer overflow
From: Pierre-Yves Rofes <py () gentoo org>
Date: Thu, 27 Sep 2007 23:01:46 +0200
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200709-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: Lighttpd: Buffer overflow Date: September 27, 2007 Bugs: #191912 ID: 200709-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Lighttpd is vulnerable to the remote execution of arbitrary code. Background ========== Lighttpd is a lightweight HTTP web server. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-servers/lighttpd < 1.4.18 >= 1.4.18 Description =========== Mattias Bengtsson and Philip Olausson have discovered a buffer overflow vulnerability in the function fcgi_env_add() in the file mod_fastcgi.c when processing overly long HTTP headers. Impact ====== A remote attacker could send a specially crafted request to the vulnerable Lighttpd server, resulting in the remote execution of arbitrary code with privileges of the user running the web server. Note that mod_fastcgi is disabled in Gentoo's default configuration. Workaround ========== Edit the file /etc/lighttpd/lighttpd.conf and comment the following line: "include mod_fastcgi.conf" Resolution ========== All Lighttpd users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-servers/lighttpd-1.4.18" References ========== [ 1 ] CVE-2007-4727 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4727 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200709-16.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 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFG/Bo6uhJ+ozIKI5gRAjNlAJ93Hk2nbz+y+RuANQyU/fEblnLTTwCfZmqb E1Pc2dPmHp57HSTmvrfF7MY= =KK5K -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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- [ GLSA 200709-16 ] Lighttpd: Buffer overflow Pierre-Yves Rofes (Sep 27)