Several security issues were fixed in wpa_supplicant and hostapd.
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)
10 November 2015
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in wpa_supplicant and hostapd.
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)
The problem can be corrected by updating your system to the following package versions:
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.