Name of the Vulnerable Software and Affected Versions: CKB (affected versions not specified)

Description: The issue is related to the P2P protocols lacking rate limits. Specifically, in the relay protocol, when a node receives a broadcasted tx hashes, it marks them in memory to avoid duplicated requests. This can be exploited to launch a denial-of-service (DoS) attack by generating random tx hashes. The issue affects all nodes connected to the P2P network.

Recommendations: Apply rate limits on the data sent to the CKB P2P port to mitigate the risk of exploitation.