Cisco Wireless LAN Controller (WLC) devices do not properly address the resource consumption of terminated TELNET sessions, which allows remote attackers to cause a denial of service (TELNET outage) by making many TELNET connections and improperly ending these connections, aka Bug ID CSCug35507.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| 2000_wireless_lan_controller | Cisco | * | * |
| 2100_wireless_lan_controller | Cisco | * | * |
| 2106_wireless_lan_controller | Cisco | - (including) | - (including) |
| 2112_wireless_lan_controller | Cisco | - (including) | - (including) |
| 2125_wireless_lan_controller | Cisco | - (including) | - (including) |
| 2500_wireless_lan_controller | Cisco | - (including) | - (including) |
| 2504_wireless_lan_controller | Cisco | - (including) | - (including) |
| 4100_wireless_lan_controller | Cisco | * | * |
| 4400_wireless_lan_controller | Cisco | * | * |
| 4402_wireless_lan_controller | Cisco | * | * |
| 4404_wireless_lan_controller | Cisco | * | * |
| 5500_wireless_lan_controller | Cisco | - (including) | - (including) |
| 7500_wireless_lan_controller | Cisco | - (including) | - (including) |
| 8500_wireless_lan_controller | Cisco | - (including) | - (including) |
| Airespace_4000_wireless_lan_controller | Cisco | * | * |
| Wireless_lan_controller | Cisco | * | * |