Denial of Service Vulnerability in Ethereum Proof-of-Stake Consensus Protocol
CVE-2021-42764

9.1CRITICAL

Key Information:

Vendor

Proof-of-stake Ethereum Project

Status
Proof-of-stake Ethereum
Vendor
CVE Published:
20 October 2021

What is CVE-2021-42764?

The Ethereum Proof-of-Stake consensus protocol, through October 19, 2021, is vulnerable to a denial of service attack that can delay consensus decisions. This vulnerability allows adversaries to perform short-range reorganizations on the underlying consensus chain, potentially increasing the profits of specific validators while undermining the overall reliability of the network.

References

https://arxiv.org/abs/2110.10086
x_refsource_MISC

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2021-42764 : Denial of Service Vulnerability in Ethereum Proof-of-Stake Consensus Protocol