Protocol Violation in Quant

Open QUICTester opened this issue 2 years ago • 1 comments

Hi,

During our tests involving a Quant (511d91c3) implementation, we identified a protocol violation on the Quiche server implementation.

Bug detail: The server does not discard an Initial packet if it's carried in a UDP datagram with a payload size smaller than the minimum allowed maximum datagram size of 1200 bytes (Section 14.1, RFC 9000).

This requirement ensures that the network path supports a reasonable Path Maximum Transmission Unit (PMTU) in both directions, as QUIC MUST NOT be employed if the network path cannot handle a maximum datagram size of at least 1200 bytes.

Sep 01 '23 07:09 QUICTester

Thanks for the report. It's very likely that you identified a bug. Quant isn't under active maintenance anymore, since it was meant as a proof-of-concept to validate the evolving QUIC spec during its standardization. So it's unlikely I'll fix this.

Also, who are you? Your profile does not have any contact information.

Sep 08 '23 07:09 larseggert