Ubuntu 2650-1: wpa_supplicant And Hostapd Crash Due To Network Traffic

ubuntu

June 16, 2015

wpa_supplicant and hostapd could be made to crash if they received specially crafted network traffic.

Summary

wpa_supplicant and hostapd could be made to crash if they received

specially crafted network traffic.

Software Description:

- wpa: client support for WPA and WPA2

- wpasupplicant: client support for WPA and WPA2

Details:

Kostya Kortchinsky discovered multiple flaws in wpa_supplicant and hostapd.

A remote attacker could use these issues to cause wpa_supplicant or hostapd

to crash, resulting in a denial of service. (CVE-2015-4141, CVE-2015-4142,

CVE-2015-4143, CVE-2015-4144, CVE-2015-4145, CVE-2015-4146)

Topics Covered

security advisory denial of service Ubuntu update instructions wpa_supplicant crash issue hostapd

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.04:
  hostapd                         2.1-0ubuntu7.2
  wpasupplicant                   2.1-0ubuntu7.2

Ubuntu 14.10:
  hostapd                         2.1-0ubuntu4.2
  wpasupplicant                   2.1-0ubuntu4.2

Ubuntu 14.04 LTS:
  hostapd                         2.1-0ubuntu1.3
  wpasupplicant                   2.1-0ubuntu1.3

Ubuntu 12.04 LTS:
  wpasupplicant                   0.7.3-6ubuntu2.4

After a standard system update you need to reboot your computer to make
all the necessary changes.