CVE-2021-42765: High severity ethereum vulnerability
The Proof-of-Stake (PoS) Ethereum consensus protocol through 2021-10-19 allows an adversary to leverage network delay to cause a denial of service (indefinite stalling of consensus decisions).
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-42765?
CVE-2021-42765 has a medium severity level due to its potential to cause denial of service in the Ethereum network.
How does CVE-2021-42765 affect Ethereum?
CVE-2021-42765 allows an adversary to exploit network delays, leading to indefinite stalling of consensus decisions within the Ethereum Proof-of-Stake protocol.
How do I mitigate CVE-2021-42765?
Mitigation for CVE-2021-42765 involves upgrading to a version of the Ethereum Proof-of-Stake software that was released after October 19, 2021.
What versions of Ethereum are affected by CVE-2021-42765?
CVE-2021-42765 affects all versions of Ethereum Proof-of-Stake released before or on October 19, 2021.
What should I do if I am using an affected version of Ethereum?
If using an affected version, it is recommended to immediately upgrade to a patched version to prevent possible denial of service attacks.