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[ GLSA 200508-05 ] Heartbeat: Insecure temporary file creation
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Sun, 7 Aug 2005 08:57:22 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200508-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Heartbeat: Insecure temporary file creation Date: August 07, 2005 Bugs: #97175 ID: 200508-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Heartbeat is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files. Background ========== Heartbeat is a component of the High-Availability Linux project. It it used to perform death-of-node detection, communications and cluster management. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-cluster/heartbeat < 1.2.3-r1 >= 1.2.3-r1 Description =========== Eric Romang has discovered that Heartbeat insecurely creates temporary files with predictable filenames. Impact ====== A local attacker could create symbolic links in the temporary file directory, pointing to a valid file somewhere on the filesystem. When a vulnerable script is executed, this could lead to the file being overwritten with the rights of the user running the affected application. 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-1.2.3-r1" References ========== [ 1 ] CAN-2005-2231 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2231 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200508-05.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 2005 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
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- [ GLSA 200508-05 ] Heartbeat: Insecure temporary file creation Sune Kloppenborg Jeppesen (Aug 06)