CVE-2020-26240

Erroneous Proof of Work calculation in geth

State
Published
Severity
5.3 Medium
Published
Nov 25, 2020
Updated
Aug 4, 2024
Reserved
Oct 1, 2020

Read the record on cve.org

Description

Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:NGitHub_M

Weaknesses

Affected Products

ProductVersions
go-ethereumethereum
  • < 1.9.24Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.