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[ GLSA 200711-09 ] MadWifi: Denial of Service
From: Pierre-Yves Rofes <py () gentoo org>
Date: Wed, 07 Nov 2007 21:43:26 +0100
-----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-----
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- [ GLSA 200711-09 ] MadWifi: Denial of Service Pierre-Yves Rofes (Nov 07)