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[ GLSA 200410-13 ] BNC: Input validation flaw
From: Thierry Carrez <koon () gentoo org>
Date: Fri, 15 Oct 2004 14:00:32 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200410-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: BNC: Input validation flaw Date: October 15, 2004 Bugs: #66912 ID: 200410-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== BNC contains an input validation flaw which might allow a remote attacker to issue arbitrary IRC related commands. Background ========== BNC is an IRC proxying server Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-irc/bnc < 2.8.9 >= 2.8.9 Description =========== A flaw exists in the input parsing of BNC where part of the sbuf_getmsg() function handles the backspace character incorrectly. Impact ====== A remote user could issue commands using fake authentication credentials and possibly gain access to scripts running on the client side. Workaround ========== There is no known workaround at this time. Resolution ========== All BNC users should upgrade to the latest version: # emerge sync # emerge -pv ">=net-irc/bnc-2.8.9" # emerge ">=net-irc/bnc-2.8.9" References ========== [ 1 ] BNC Changes http://www.gotbnc.com/changes.html#2.8.9 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200410-13.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 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/1.0
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- [ GLSA 200410-13 ] BNC: Input validation flaw Thierry Carrez (Oct 15)