Denial of service in quinn-proto when using `Endpoint::retry()`

Summary As of quinn-proto 0.11, it is possible for a server to accept, retry, refuse, or ignore an Incoming connection. However, calling retry on an unvalidated connection exposes the server to a likely panic in the following situations: - Calling refuse or ignore on the resulting validated...

`Endpoint::retry()` calls can lead to panicking

In 0.11.0, we overhauled the server-side Endpoint implementation to enable more careful handling of incoming connection attempts. However, some of the code paths that cleaned up state after connection attempts were processed confused the initial destination connection ID with the destination...

February 11, 2020-KB4537557 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1703

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February 11, 2020-KB4534129 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1709

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