PT-2022-11571 · Unknown · Go-Ethereum

Published 2022-03-16 · Updated 2022-03-28 · CVE-2021-42219

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Go-Ethereum version 1.10.9

Description The issue allows attackers to cause a denial of service (DoS) by sending an excessive amount of messages to a node, due to missing memory in the component /ethash/algorithm.go.

Recommendations For Go-Ethereum version 1.10.9, consider restricting access to the /ethash/algorithm.go component to minimize the risk of exploitation. As a temporary workaround, limit the amount of messages that can be sent to a node to prevent a denial of service. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2021-42219

GHSA-VRCC-G6VJ-MH5W

Affected Products

Go-Ethereum

References · 4

• 🔥 https://docs.google.com/document/d/1dYFSpNZPC0OV-n1mMqdc269u9yYU1XQy/edit?usp=sharing&ouid=112110745137218798745&rtpof=true&sd=true · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-42219 · Security Note
• https://osv.dev/vulnerability/GHSA-vrcc-g6vj-mh5w · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-42219 · Vendor Advisory