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Gentoo alert 200503-29 (gnupg)

From:  Thierry Carrez <koon@gentoo.org>
To:  gentoo-announce@robin.gentoo.org
Subject:  [gentoo-announce] [ GLSA 200503-29 ] GnuPG: OpenPGP protocol attack
Date:  Thu, 24 Mar 2005 22:52:14 +0100
Cc:  bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk, security-alerts@linuxsecurity.com

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200503-29 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: GnuPG: OpenPGP protocol attack Date: March 24, 2005 Bugs: #85547 ID: 200503-29 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Automated systems using GnuPG may leak plaintext portions of an encrypted message. Background ========== GnuPG is complete and free replacement for PGP, a tool for secure communication and data storage. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-crypt/gnupg < 1.4.1 >= 1.4.1 Description =========== A flaw has been identified in an integrity checking mechanism of the OpenPGP protocol. Impact ====== An automated system using GnuPG that allows an attacker to repeatedly discover the outcome of an integrity check (perhaps by observing the time required to return a response, or via overly verbose error messages) could theoretically reveal a small portion of plaintext. Workaround ========== There is no known workaround at this time. Resolution ========== All GnuPG users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-crypt/gnupg-1.4.1" References ========== [ 1 ] CERT VU#303094 http://www.kb.cert.org/vuls/id/303094 [ 2 ] CAN-2005-0366 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0366 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200503-29.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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