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.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CISCO:20080326 Cisco IOS Virtual Private Dial-up Network Denial of Service Vulnerability
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