- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200411-24 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: BNC: Buffer overflow vulnerability Date: November 16, 2004 Bugs: #70674 ID: 200411-24 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== BNC contains a buffer overflow vulnerability that may lead to Denial of Service and execution of arbitrary code. Background ========== BNC (BouNCe) is an IRC proxy server. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-irc/bnc < 2.9.1 >= 2.9.1 Description =========== Leon Juranic discovered that BNC fails to do proper bounds checking when checking server response. Impact ====== An attacker could exploit this to cause a Denial of Service and potentially execute arbitary code with the permissions of the user running BNC. Workaround ========== There is no known workaround at this time. Resolution ========== All BNC users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-irc/bnc-2.9.1" References ========== [ 1 ] BNC ChangeLog http://gotbnc.com/changes.html [ 2 ] LSS-2004-11-03 http://security.lss.hr/en/index.php?page=details&ID=LSS-2004-11-03 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200411-24.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@xxxxxxxxxx or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2004 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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