USN-3969-2: wpa_supplicant and hostapd vulnerability

wpa vulnerability

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

Ubuntu 14.04 ESM

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

Details

USN-3969-1 fixed a vulnerability in wpa_supplicant and hostapd. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that wpa_supplicant and hostapd incorrectly handled
unexpected fragments when using EAP-pwd. A remote attacker could possibly
use this issue to cause a denial of service.

Update instructions

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

Ubuntu 14.04 ESM: hostapd – 2.1-0ubuntu1.7+esm1; wpasupplicant – 2.1-0ubuntu1.7+esm1

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.

References

Source: USN-3969-2: wpa_supplicant and hostapd vulnerability

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