- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200608-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Courier MTA: Denial of Service vulnerability Date: August 04, 2006 Bugs: #135005 ID: 200608-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Courier MTA has fixed a DoS issue related to usernames containing a "=" character. Background ========== Courier MTA is an integrated mail and groupware server based on open protocols. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 mail-mta/courier < 0.53.2 >= 0.53.2 Description =========== Courier MTA has fixed a security issue relating to usernames containing the "=" character, causing high CPU utilization. Impact ====== An attacker could exploit this vulnerability by sending a specially crafted email to a mail gateway running a vulnerable version of Courier MTA. Workaround ========== There is no known workaround at this time. Resolution ========== All Courier MTA users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=mail-mta/courier-0.53.2" References ========== [ 1 ] CVE-2006-2659 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2659 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200608-06.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 2006 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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