Login
Newsletter
Werbung

Sicherheit: Denial of Service in MadWifi
Aktuelle Meldungen Distributionen
Name: Denial of Service in MadWifi
ID: 200711-09
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Mi, 7. November 2007, 22:34
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5448
Applikationen: madwifi

Originalnachricht

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200711-09
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: MadWifi: Denial of Service
Date: November 07, 2007
Bugs: #195705
ID: 200711-09

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

Synopsis
========

MadWifi does not correctly process beacon frames which can lead to a
remotely triggered Denial of Service.

Background
==========

The MadWifi driver provides support for Atheros based IEEE 802.11
Wireless Lan cards.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-wireless/madwifi-ng < 0.9.3.3 >= 0.9.3.3

Description
===========

Clemens Kolbitsch and Sylvester Keil reported an error when processing
beacon frames with an overly large "length" value in the
"xrates"
element.

Impact
======

A remote attacker could act as an access point and send a specially
crafted packet to an Atheros based wireless client, possibly resulting
in a Denial of Service (kernel panic).

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MadWifi users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
">=net-wireless/madwifi-ng-0.9.3.3"

References
==========

[ 1 ] CVE-2007-5448
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5448

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200711-09.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 2007 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/2.5
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFHMiNtuhJ+ozIKI5gRAoxqAKCEmLB5pbn+EQSnNvbJAcoMe3XbGwCgoeyZ
9aD3ruieUHJOEeCYrR/ihTs=
=7I0H
-----END PGP SIGNATURE-----
--
gentoo-announce@gentoo.org mailing list
Pro-Linux
Gewinnspiel
Neue Nachrichten
Werbung