From koon@gentoo.org Tue Aug 2 14:33:58 2005 From: Thierry Carrez To: gentoo-announce@lists.gentoo.org Cc: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk, security-alerts@linuxsecurity.com Date: Tue, 02 Aug 2005 14:48:28 +0200 Subject: [ GLSA 200508-03 ] nbSMTP: Format string vulnerability - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200508-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: nbSMTP: Format string vulnerability Date: August 02, 2005 Bugs: #100274 ID: 200508-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== nbSMTP is vulnerable to a format string vulnerability which may result in remote execution of arbitrary code. Background ========== nbSMTP is an SMTP client suitable to run in chroot jails, in embedded systems, laptops and workstations. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 mail-mta/nbsmtp < 1.00 >= 1.00 Description =========== Niels Heinen discovered a format string vulnerability. Impact ====== An attacker can setup a malicious SMTP server and exploit this vulnerability to execute arbitrary code with the permissions of the user running nbSMTP. Workaround ========== There is no known workaround at this time. Resolution ========== All nbSMTP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=mail-mta/nbsmtp-1.0" References ========== [ 1 ] nbSMTP official site http://nbsmtp.ferdyx.org/ Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200508-03.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 [ Part 2, "OpenPGP digital signature" Application/PGP-SIGNATURE ] [ 264bytes. ] [ Unable to print this part. ]