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Rational ClearCase Portscan Denial Of Service Vulnerability

Rational ClearCase has been reported to be prone to a denial of service condition. It is possible to cause this condition by portscanning a system running the vulnerable version of ClearCase. This issue was demonstrated using the nmap portscanning utility.

An attacker can exploit this vulnerability by making two consecutive portscans of a vulnerable system. This will cause ClearCase to crash. Restarting the ClearCase service is required to restore functionality.