Overlapping CRYPTO frames overwrite previously received data #5819
Description
Tested Build
v2.5.5
Observation
The msquic server accepts overlapping CRYPTO frames containing different data at an already received offset and updates previously stored data instead of rejecting or ignoring the overlap.
Expected Behavior
RFC 9000, Section 2.2 states:
An endpoint could receive data for a stream at the same stream offset multiple times. Data that has already been received can be discarded. The data at a given offset MUST NOT change if it is sent multiple times; an endpoint MAY treat receipt of different data at the same offset within a stream as a connection error of type PROTOCOL_VIOLATION.