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[ GLSA 200812-16 ] Dovecot: Multiple vulnerabilities
From: Tobias Heinlein <keytoaster () gentoo org>
Date: Mon, 15 Dec 2008 14:45:23 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200812-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Dovecot: Multiple vulnerabilities Date: December 14, 2008 Bugs: #240409, #244962, #245316 ID: 200812-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities were found in the Dovecot mailserver. Background ========== Dovecot is an IMAP and POP3 server written with security primarily in mind. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-mail/dovecot < 1.1.7-r1 >= 1.1.7-r1 Description =========== Several vulnerabilities were found in Dovecot: * The "k" right in the acl_plugin does not work as expected (CVE-2008-4577, CVE-2008-4578) * The dovecot.conf is world-readable, providing improper protection for the ssl_key_password setting (CVE-2008-4870) * A permanent Denial of Service with broken mail headers is possible (CVE-2008-4907) Impact ====== These vulnerabilities might allow a remote attacker to cause a Denial of Service, to circumvent security restrictions or allow local attackers to disclose the passphrase of the SSL private key. Workaround ========== There is no known workaround at this time. Resolution ========== All Dovecot users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/dovecot-1.1.7-r1" Users should be aware that dovecot.conf will still be world-readable after the update. If employing ssl_key_password, it should not be used in dovecot.conf but in a separate file which should be included with "include_try". References ========== [ 1 ] CVE-2008-4577 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4577 [ 2 ] CVE-2008-4578 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4578 [ 3 ] CVE-2008-4870 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4870 [ 4 ] CVE-2008-4907 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4907 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200812-16.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 2008 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 200812-16 ] Dovecot: Multiple vulnerabilities Tobias Heinlein (Dec 15)