[ GLSA 200612-09 ] MadWifi: Kernel driver buffer overflow

[GLSA]

Gentoo Linux Security Advisory

Title: MadWifi: Kernel driver buffer overflow (GLSA 200612-09)
Severity: high
Exploitable: remote
Date: December 10, 2006
Bug(s): #157449
ID: 200612-09

Synopsis

MadWifi is vulnerable to a buffer overflow that could potentially lead to the remote execution of arbitrary code with root privileges.

Background

MadWifi (Multiband Atheros Driver for Wireless Fidelity) provides a Linux kernel device driver for Atheros-based Wireless LAN devices.

Affected Packages

Package: net-wireless/madwifi-ng
Vulnerable: < 0.9.2.1
Unaffected: >= 0.9.2.1
Architectures: All supported architectures


Description

Laurent Butti, Jerome Raznieski and Julien Tinnes reported a buffer overflow in the encode_ie() and the giwscan_cb() functions from ieee80211_wireless.c.

Impact

A remote attacker could send specially crafted wireless WPA packets containing malicious RSN Information Headers (IE) that could potentially lead to the remote execution of arbitrary code as the root user.

Workaround

There is no known workaround at this time.

Resolution

All MadWifi users should upgrade to the latest version: