GLSA 200706-04: MadWifi: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	MadWifi: Multiple vulnerabilities
Date:	06/11/2007
Bugs:	#179532
ID:	200706-04

Synopsis

Multiple vulnerabilities have been discovered in MadWifi, possibly allowing for the execution of arbitrary code or a Denial of Service.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-wireless/madwifi-ng	< 0.9.3.1	>= 0.9.3.1	All supported architectures

Description

Md Sohail Ahmad from AirTight Networks has discovered a divison by zero in the ath_beacon_config() function (CVE-2007-2830). The vendor has corrected an input validation error in the ieee80211_ioctl_getwmmparams() and ieee80211_ioctl_getwmmparams() functions(CVE-207-2831), and an input sanitization error when parsing nested 802.3 Ethernet frame lengths (CVE-2007-2829).

Impact

An attacker could send specially crafted packets to a vulnerable host to exploit one of these vulnerabilities, possibly resulting in the execution of arbitrary code with root privileges, or a Denial of Service.

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-0.9.3.1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200706-04.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 https://bugs.gentoo.org.