===================================================================== CERT-Renater Note d'Information No. 2005/VULN118 _____________________________________________________________________ DATE : 24/02/2005 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running Cyrus IMAP Server. ====================================================================== - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200502-29 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Cyrus IMAP Server: Multiple overflow vulnerabilities Date: February 23, 2005 Bugs: #82404 ID: 200502-29 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== The Cyrus IMAP Server is affected by several overflow vulnerabilities which could potentially lead to the remote execution of arbitrary code. Background ========== The Cyrus IMAP Server is an efficient, highly-scalable IMAP e-mail server. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-mail/cyrus-imapd < 2.2.12 >= 2.2.12 Description =========== Possible single byte overflows have been found in the imapd annotate extension and mailbox handling code. Furthermore stack buffer overflows have been found in fetchnews, the backend and imapd. Impact ====== An attacker, who could be an authenticated user or an admin of a peering news server, could exploit these vulnerabilities to execute arbitrary code with the rights of the user running the Cyrus IMAP Server. Workaround ========== There is no known workaround at this time. Resolution ========== All Cyrus IMAP Server users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/cyrus-imapd-2.2.12" References ========== [ 1 ] Cyrus IMAP Announcement http://asg.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&msg=33723 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200502-29.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 ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================