From vorlon@gentoo.org Wed Nov 10 17:13:13 2004 From: Matthias Geerdsen To: gentoo-announce@lists.gentoo.org Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, security-alerts@linuxsecurity.com Date: Wed, 10 Nov 2004 18:02:49 +0100 Subject: [Full-Disclosure] [ GLSA 200411-18 ] Apache 2.0: Denial of Service by memory consumption - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200411-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Apache 2.0: Denial of Service by memory consumption Date: November 10, 2004 Bugs: #70138 ID: 200411-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A flaw in Apache 2.0 could allow a remote attacker to cause a Denial of Service. Background ========== The Apache HTTP Server is one of the most popular web servers on the Internet. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-www/apache < 2.0.52-r1 >= 2.0.52-r1 < 2.0 Description =========== Chintan Trivedi discovered a vulnerability in Apache httpd 2.0 that is caused by improper enforcing of the field length limit in the header-parsing code. Impact ====== By sending a large amount of specially-crafted HTTP GET requests a remote attacker could cause a Denial of Service of the targeted system. Workaround ========== There is no known workaround at this time. Resolution ========== All Apache 2.0 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-www/apache-2.0.52-r1" References ========== [ 1 ] CAN-2004-0942 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0942 [ 2 ] Security vulnerabilities in Apache httpd 2.0 http://www.apacheweek.com/features/security-20 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200411-18.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 2004 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 2, "OpenPGP digital signature" Application/PGP-SIGNATURE ] [ 196bytes. ] [ Unable to print this part. ]