GHSA-G9HV-X236-4QP3 Russh: client wrong-length X25519 `clone_from_slice` panic (pre-auth DoS)

Summary A malicious SSH server can crash a russh client session with a single malformed key-exchange reply, causing a pre-authentication Denial-of-Service before the server host key is verified. The embedding process itself stays up, but the connection is killed deterministically. Details Every...