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[ GLSA 200611-25 ] OpenLDAP: Denial of Service vulnerability
From: Raphael Marichez <falco () gentoo org>
Date: Tue, 28 Nov 2006 20:58:14 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200611-25 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: OpenLDAP: Denial of Service vulnerability Date: November 28, 2006 Bugs: #154349 ID: 200611-25 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A flaw in OpenLDAP allows remote unauthenticated attackers to cause a Denial of Service. Background ========== OpenLDAP is a suite of LDAP-related applications and development tools. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-nds/openldap < 2.3.27-r3 >= 2.3.27-r3 *>= 2.2.28-r5 *>= 2.1.30-r8 Description =========== Evgeny Legerov has discovered that the truncation of an incoming authcid longer than 255 characters and ending with a space as the 255th character will lead to an improperly computed name length. This will trigger an assert in the libldap code. Impact ====== By sending a BIND request with a specially crafted authcid parameter to an OpenLDAP service, a remote attacker can cause the service to crash. Workaround ========== There is no known workaround at this time. Resolution ========== All OpenLDAP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "net-nds/openldap" References ========== [ 1 ] CVE-2006-5779 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5779 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200611-25.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/2.5
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- [ GLSA 200611-25 ] OpenLDAP: Denial of Service vulnerability Raphael Marichez (Nov 28)