The Lsass.exe process leaks memory on a server after a client computer attempts to access the server repeatedly if both computers are running Forefront TMG 2010 SP1

Consider the following scenario:

• You enable the SSL Inspection feature on a server that has Microsoft Forefront Threat Management Gateway (TMG) 2010 Service Pack 1 (SP1)installed.
• You configure an HTTPS server that does not support Transport Layer Security (TLS) 1.0.
• You try to access the server repeatedly by using a client computer that has Forefront TMG 2010 SP1 installed.

In this scenario, all attempts to access the server fail, and the Lsass.exe process leaks memory after every attempt. Additionally, the following event entry is logged for every attempt:

Note To monitor the handle count of the Lsass.exe process, run the Process Explorer program, add a Handles column by selecting the Handle Count option from the Process Performance tab. For this issue, the handle count for the Lsass.exe process increases by 2-4 handles after each failed attempt.