[Please upgrade Lynx on all distributions. It is also vulnerable to
other issues -- Raju]
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From: Sune Kloppenborg Jeppesen <[EMAIL PROTECTED]>
To: gentoo-announce@gentoo.org
Cc: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk,
[EMAIL PROTECTED]
Subject: [ GLSA 200510-15 ] Lynx: Buffer overflow in NNTP processing
Date: Mon, 17 Oct 2005 17:03:01 +0200
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Gentoo Linux Security Advisory GLSA 200510-15
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http://security.gentoo.org/
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Severity: Normal
Title: Lynx: Buffer overflow in NNTP processing
Date: October 17, 2005
Bugs: #108451
ID: 200510-15
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Synopsis
========
Lynx contains a buffer overflow that may be exploited to execute
arbitrary code.
Background
==========
Lynx is a text-mode browser for the World Wide Web. It supports
multiple URL types, including HTTP and NNTP URLs.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-client/lynx < 2.8.5-r1 >= 2.8.5-r1
Description
===========
When accessing a NNTP URL, Lynx connects to a NNTP server and retrieves
information about the available articles in the target newsgroup. Ulf
Harnhammar discovered a buffer overflow in a function that handles the
escaping of special characters.
Impact
======
An attacker could setup a malicious NNTP server and entice a user to
access it using Lynx (either by creating NNTP links on a web page or by
forcing a redirect for Lynx users). The data returned by the NNTP
server would trigger the buffer overflow and execute arbitrary code
with the rights of the user running Lynx.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Lynx users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/lynx-2.8.5-r1"
References
==========
[ 1 ] CAN-2005-3120
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-3120
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200510-15.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
[EMAIL PROTECTED] 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
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******************
--
Raj Mathur [EMAIL PROTECTED] http://kandalaya.org/
GPG: 78D4 FC67 367F 40E2 0DD5 0FEF C968 D0EF CC68 D17F
It is the mind that moves
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