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[ GLSA 200504-28 ] Heimdal: Buffer overflow vulnerabilities
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Thu, 28 Apr 2005 17:08:48 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200504-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Heimdal: Buffer overflow vulnerabilities Date: April 28, 2005 Bugs: #89861 ID: 200504-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Buffer overflow vulnerabilities have been found in the telnet client in Heimdal which could lead to execution of arbitrary code. Background ========== Heimdal is a free implementation of Kerberos 5 that includes a telnet client program. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-crypt/heimdal < 0.6.4 >= 0.6.4 Description =========== Buffer overflow vulnerabilities in the slc_add_reply() and env_opt_add() functions have been discovered by Gael Delalleau in the telnet client in Heimdal. Impact ====== Successful exploitation would require a vulnerable user to connect to an attacker-controlled host using the telnet client, potentially executing arbitrary code with the permissions of the user running the application. Workaround ========== There is no known workaround at this time. Resolution ========== All Heimdal users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-crypt/heimdal-0.6.4" References ========== [ 1 ] CAN-2005-0468 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0468 [ 2 ] CAN-2005-0469 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0469 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200504-28.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 200504-28 ] Heimdal: Buffer overflow vulnerabilities Sune Kloppenborg Jeppesen (Apr 28)