The virtual private dial-up network (VPDN) component in Cisco IOS before 12.3 allows remote attackers to cause a denial of service (resource exhaustion) via a series of PPTP sessions, related to the persistence of interface descriptor block (IDB) data structures after process termination, aka bug ID CSCdv59309.
| Name | Vendor | Start Version | End Version | 
|---|---|---|---|
| Ios | Cisco | * | 12.2 (including) |