GHSA-M6WQ-66P2-C8PC Babylon Nil BlockHash in BLS vote extensions triggers panics in consensus handlers

Summary A vulnerability exists in Babylon’s BLS vote extension processing where a malicious active validator can submit a VoteExtension with the blockhash field omitted from the protobuf serialization. Because protobuf fields are optional, unmarshalling succeeds but leaves BlockHash as nil. Babyl...

PT-2023-29922 · Quic-Go · Quic-Go

Name of the Vulnerable Software and Affected Versions: quic-go versions 0.37.0 through 0.37.2 Description: The issue arises from serializing an ACK frame after the CRYPTO frame, allowing a node to complete the handshake. This can trigger a nil pointer dereference when the node attempts to drop th...