CVE-2021-42764

Name of the Vulnerable Software and Affected Versions Ethereum consensus protocol through 2021-10-19

Description The issue allows an adversary to cause a denial of service, resulting in delayed consensus decisions, and also increase the profits of individual validators. This is achieved via short-range reorganizations of the underlying consensus chain.

Recommendations For Ethereum consensus protocol versions through 2021-10-19, consider implementing measures to prevent short-range reorganizations of the consensus chain as a temporary workaround until a more permanent solution is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.