go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node, can be made to consume unbounded amounts of memory when handling specially crafted p2p messages sent from an attacker node. The fix is included in geth version "1.12.1-stable", i.e, "1.12.2-unstable" and onwards. Users are advised to upgrade. There are no known workarounds for this vulnerability.