Login
Newsletter
Werbung

Sicherheit: Pufferüberlauf in lynx
Aktuelle Meldungen Distributionen
Name: Pufferüberlauf in lynx
ID: 200510-15
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Mo, 17. Oktober 2005, 17:08
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3120
Applikationen: NNTP

Originalnachricht

--nextPart1236886.Oh0OSGKNKJ

Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200510-15
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Lynx: Buffer overflow in NNTP processing
Date: October 17, 2005
Bugs: #108451
ID: 200510-15

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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
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

--nextPart1236886.Oh0OSGKNKJ
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)

iD8DBQBDU70szKC5hMHO6rkRAlWkAJ9bqSokBGq67cNOvEjiYFLSoibVwgCfY7u4
gRdk9yRLiPXHP8m+TtzfIvA=
=0fOZ
-----END PGP SIGNATURE-----

--nextPart1236886.Oh0OSGKNKJ--
--
gentoo-announce@gentoo.org mailing list

Pro-Linux
Pro-Linux @Twitter
Neue Nachrichten
Werbung