[ GLSA 200411-24 ] BNC: Buffer overflow vulnerability
Date: Tue, 16 Nov 2004 11:05:27 +0100
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200411-24 ] BNC: Buffer overflow vulnerability
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200411-24
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http://security.gentoo.org/
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Severity: High
Title: BNC: Buffer overflow vulnerability
Date: November 16, 2004
Bugs: #70674
ID: 200411-24
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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@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/2.0
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