===================================================================== CERT-Renater Note d'Information No. 2006/VULN191 _____________________________________________________________________ DATE : 24/04/2006 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running Cyrus-SASL. ====================================================================== - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200604-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service Date: April 21, 2006 Bugs: #129523 ID: 200604-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Cyrus-SASL contains a vulnerability in the DIGEST-MD5 process that could lead to a Denial of Service. Background ========== Cyrus-SASL is an implementation of the Simple Authentication and Security Layer. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/cyrus-sasl < 2.1.21-r2 >= 2.1.21-r2 Description =========== Cyrus-SASL contains an unspecified vulnerability in the DIGEST-MD5 process that could lead to a Denial of Service. Impact ====== An attacker could possibly exploit this vulnerability by sending specially crafted data stream to the Cyrus-SASL server, resulting in a Denial of Service even if the attacker is not able to authenticate. Workaround ========== There is no known workaround at this time. Resolution ========== All Cyrus-SASL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.21-r2" References ========== [ 1 ] CVE-2006-1721 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1721 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200604-09.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 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/2.0 ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================