USN-2650-1: wpa_supplicant and hostapd vulnerabilities

Ubuntu Security Notice USN-2650-1

16th June, 2015

wpa, wpasupplicant vulnerabilities

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

• Ubuntu 15.04
• Ubuntu 14.10
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

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)

Update instructions

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

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

To update your system, please follow these instructions: http://ift.tt/17VXqjU.

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

References

CVE-2015-4141, CVE-2015-4142, CVE-2015-4143, CVE-2015-4144, CVE-2015-4145, CVE-2015-4146

from Ubuntu Security Notices http://ift.tt/1QBNvYd