GHSA-CWC9-CP4J-MCVV libp2p: CPU DoS via oversized IHAVE and IWANT control message arrays

Summary gossipsub processes IHAVE and IWANT control messages by iterating every received message ID synchronously before doing anything with the results. There is no cap on how many IDs a single frame may contain. The default LP frame limit is 4MB, which fits roughly 180,000 message IDs. Iteratin...