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[ GLSA 200608-23 ] Heartbeat: Denial of Service
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Thu, 24 Aug 2006 19:43:33 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200608-23 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Heartbeat: Denial of Service Date: August 24, 2006 Bugs: #141894 ID: 200608-23 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Heartbeat is vulnerable to a Denial of Service which can be triggered by a remote attacker without authentication. Background ========== Heartbeat is a component of the High-Availability Linux project. It is used to perform death-of-node detection, communications and cluster management. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-cluster/heartbeat < 2.0.7 >= 2.0.7 Description =========== Yan Rong Ge discovered that the peel_netstring() function in cl_netstring.c does not validate the "length" parameter of user input, which can lead to an out-of-bounds memory access when processing certain Heartbeat messages (CVE-2006-3121). Furthermore an unspecified local DoS issue was fixed (CVE-2006-3815). Impact ====== By sending a malicious UDP Heartbeat message, even before authentication, a remote attacker can crash the master control process of the cluster. Workaround ========== There is no known workaround at this time. Resolution ========== All Heartbeat users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-cluster/heartbeat-2.0.7" References ========== [ 1 ] CVE-2006-3121 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3121 [ 2 ] CVE-2006-3815 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3815 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200608-23.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 200608-23 ] Heartbeat: Denial of Service Sune Kloppenborg Jeppesen (Aug 24)