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[ GLSA 200404-09 ] Cross-realm trust vulnerability in Heimdal
From: Kurt Lieber <klieber () gentoo org>
Date: Fri, 9 Apr 2004 06:51:30 -0400
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200404-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Cross-realm trust vulnerability in Heimdal Date: April 09, 2004 Bugs: #46590 ID: 200404-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Heimdal contains cross-realm vulnerability allowing someone with control over a realm to impersonate anyone in the cross-realm trust path. Background ========== Heimdal is a free implementation of Kerberos 5. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- app-crypt/heimdal <= 0.6.0 >= 0.6.1 Description =========== Heimdal does not properly perform certain consistency checks for cross-realm requests, which allows remote attackers with control of a realm to impersonate others in the cross-realm trust path. Impact ====== Remote attackers with control of a realm may be able to impersonate other users in the cross-realm trust path. Workaround ========== A workaround is not currently known for this issue. All users are advised to upgrade to the latest version of the affected package. Resolution ========== Heimdal users should upgrade to version 0.6.1 or later: # emerge sync # emerge -pv ">=app-crypt/heimdal-0.6.1" # emerge ">=app-crypt/heimdal-0.6.1" References ========== [ 1 ] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0371 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. Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200404-09.xml Copyright/License ================== Copyright 2004 Gentoo Technologies, Inc. The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/1.0
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- [ GLSA 200404-09 ] Cross-realm trust vulnerability in Heimdal Kurt Lieber (Apr 09)