Ubuntu Security Notice 2808-1 – 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. 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. Various other issues were also addressed.