=========================================================================Ubuntu Security Notice USN-2808-1
November 10, 2015

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

- Ubuntu 15.10
- Ubuntu 15.04
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in wpa_supplicant and hostapd.

Software Description:
- wpa: client support for WPA and WPA2

Details:

It was discovered that wpa_supplicant incorrectly handled WMM Sleep Mode
Response frame processing. A remote attacker could use this issue to
perform broadcast/multicast packet injections, or cause a denial of
service. (CVE-2015-5310)

It was discovered that wpa_supplicant and hostapd incorrectly handled
certain EAP-pwd messages. A remote attacker could use this issue to cause a
denial of service. (CVE-2015-5314, CVE-2015-5315)

It was discovered that wpa_supplicant incorrectly handled certain EAP-pwd
Confirm messages. A remote attacker could use this issue to cause a
denial of service. This issue only applied to Ubuntu 15.10. (CVE-2015-5316)

Update instructions:

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

Ubuntu 15.10:
  hostapd                         2.4-0ubuntu3.2
  wpasupplicant                   2.4-0ubuntu3.2

Ubuntu 15.04:
  hostapd                         2.1-0ubuntu7.3
  wpasupplicant                   2.1-0ubuntu7.3

Ubuntu 14.04 LTS:
  hostapd                         2.1-0ubuntu1.4
  wpasupplicant                   2.1-0ubuntu1.4

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

References:
  https://ubuntu.com/security/notices/USN-2808-1
  CVE-2015-5310, CVE-2015-5314, CVE-2015-5315, CVE-2015-5316

Package Information:
  https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu3.2
  https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu7.3
  https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.4