USN-2650-1: wpa_supplicant and hostapd vulnerabilities

Ubuntu Security Notice USN-2650-1

16th June, 2015

A security issue affects these releases of Ubuntu and its
derivatives:

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

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)

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

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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