Cisco Wireless LAN Controller (WLC) devices with software 7.4(1.1) allow remote attackers to cause a denial of service (wireless-networking outage) via crafted TCP traffic on the local network, aka Bug ID CSCug67104.Referenceshttp://www.securitytracker.com/id/1032419http://tools.cisco.com/security/center/viewAlert.x?alertId=39041