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[ GLSA 200702-05 ] Fail2ban: Denial of Service
From: Raphael Marichez <falco () gentoo org>
Date: Fri, 16 Feb 2007 01:39:27 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200702-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Fail2ban: Denial of Service Date: February 16, 2007 Bugs: #157166 ID: 200702-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A flaw in Fail2ban may allow remote attackers to deny access to arbitrary hosts. Background ========== Fail2ban monitors log files for failed authentication attempts and can block hosts responsible for repeated attacks. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-analyzer/fail2ban < 0.6.2 >= 0.6.2 Description =========== A flaw in the method used to parse log entries allows remote, unauthenticated attackers to forge authentication attempts from other hosts. Impact ====== A remote attacker can add arbitrary hosts to the block list, denying legitimate users access to a resource. Workaround ========== There is no known workaround at this time. Resolution ========== All Fail2ban users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-analyzer/fail2ban-0.6.2" References ========== [ 1 ] CVE-2006-6302 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6302 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200702-05.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
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- [ GLSA 200702-05 ] Fail2ban: Denial of Service Raphael Marichez (Feb 16)