full-disclosure - [ GLSA 200711-09 ] MadWifi: Denial of Service

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <4732236E.3090306@gentoo.org>
Date: Wed, 07 Nov 2007 21:43:26 +0100
From: Pierre-Yves Rofes <py@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200711-09 ] MadWifi: Denial of Service

-----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@...too.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-----

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/