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Ubuntu Security Notice USN-2650-1
June 16, 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 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.

References:
http://www.ubuntu.com/usn/usn-2650-1
CVE-2015-4141, CVE-2015-4142, CVE-2015-4143, CVE-2015-4144,
CVE-2015-4145, CVE-2015-4146

Package Information:
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu7.2
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu4.2
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.3
https://launchpad.net/ubuntu/+source/wpasupplicant/0.7.3-6ubuntu2.4

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