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.