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[ GLSA 200904-05 ] ntp: Certificate validation error
From: Pierre-Yves Rofes <py () gentoo org>
Date: Sun, 05 Apr 2009 15:56:49 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200904-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: ntp: Certificate validation error Date: April 05, 2009 Bugs: #254098 ID: 200904-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== An error in the OpenSSL certificate chain validation in ntp might allow for spoofing attacks. Background ========== ntp contains the client and daemon implementations for the Network Time Protocol. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/ntp < 4.2.4_p6 >= 4.2.4_p6 Description =========== It has been reported that ntp incorrectly checks the return value of the EVP_VerifyFinal(), a vulnerability related to CVE-2008-5077 (GLSA 200902-02). Impact ====== A remote attacker could exploit this vulnerability to spoof arbitrary names to conduct Man-In-The-Middle attacks and intercept sensitive information. Workaround ========== There is no known workaround at this time. Resolution ========== All ntp users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/ntp-4.2.4_p6" References ========== [ 1 ] CVE-2008-5077 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5077 [ 2 ] CVE-2009-0021 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0021 [ 3 ] GLSA 200902-02 http://www.gentoo.org/security/en/glsa/glsa-200902-02.xml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200904-05.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 2009 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 200904-05 ] ntp: Certificate validation error Pierre-Yves Rofes (Apr 05)