wpa_supplicant: Buffer overflow vulnerability — GLSA 200502-22

wpa_supplicant contains a buffer overflow that could lead to a Denial of Service.

Affected Packages

net-wireless/wpa_supplicant on all architectures
Affected versions < 0.2.7
Unaffected versions >= 0.2.7

Background

wpa_supplicant is a WPA Supplicant with support for WPA and WPA2 (IEEE 802.11i / RSN).

Description

wpa_supplicant contains a possible buffer overflow due to the lacking validation of received EAPOL-Key frames.

Impact

An attacker could cause the crash of wpa_supplicant using a specially crafted packet.

Workaround

There is no known workaround at this time.

Resolution

All wpa_supplicant users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-wireless/wpa_supplicant-0.2.7"

References

Release Date
February 16, 2005

Latest Revision
May 22, 2006: 02

Severity
normal

Exploitable
remote

Bugzilla entries