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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXY1OTIteGY3NS04NTZw

Erroneous Proof of Work calculation in geth

Impact

An ethash mining DAG generation flaw in Geth 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.

Specific Go Packages Affected

github.com/ethereum/go-ethereum/consensus

Patches

This issue is also fixed as of 1.9.24. Thanks to @slavikus for bringing the issue to our attention and writing the fix.

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-v592-xf75-856p
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXY1OTIteGY3NS04NTZw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: 6 months ago


CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Identifiers: GHSA-v592-xf75-856p, CVE-2020-26240
References: Repository: https://github.com/ethereum/go-ethereum

Affected Packages

go:github.com/ethereum/go-ethereum
Dependent packages: 7,017
Dependent repositories: 6,875
Downloads:
Affected Version Ranges: < 1.9.24
Fixed in: 1.9.24
All affected versions: 0.4.1, 0.4.2, 0.4.3, 0.6.0, 0.6.3, 0.6.4, 0.6.5, 0.6.6, 0.6.7, 0.6.8, 0.7.10, 0.7.11, 0.8.4, 0.8.5, 0.9.17, 0.9.18, 0.9.20, 0.9.21, 0.9.22, 0.9.23, 0.9.24, 0.9.25, 0.9.26, 0.9.28, 0.9.30, 0.9.32, 0.9.34, 0.9.36, 0.9.38, 0.9.39, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2.2, 1.2.3, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.17, 1.4.18, 1.4.19, 1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.7.0, 1.7.1, 1.7.2, 1.7.3, 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5, 1.8.6, 1.8.7, 1.8.8, 1.8.9, 1.8.10, 1.8.11, 1.8.12, 1.8.13, 1.8.14, 1.8.15, 1.8.16, 1.8.17, 1.8.18, 1.8.19, 1.8.20, 1.8.21, 1.8.22, 1.8.23, 1.8.24, 1.8.25, 1.8.26, 1.8.27, 1.9.0, 1.9.1, 1.9.2, 1.9.3, 1.9.4, 1.9.5, 1.9.6, 1.9.7, 1.9.8, 1.9.9, 1.9.10, 1.9.11, 1.9.12, 1.9.13, 1.9.14, 1.9.15, 1.9.16, 1.9.17, 1.9.18, 1.9.19, 1.9.20, 1.9.21, 1.9.22, 1.9.23
All unaffected versions: 1.9.24, 1.9.25, 1.10.0, 1.10.1, 1.10.2, 1.10.3, 1.10.4, 1.10.5, 1.10.6, 1.10.7, 1.10.8, 1.10.9, 1.10.10, 1.10.11, 1.10.12, 1.10.13, 1.10.14, 1.10.15, 1.10.16, 1.10.17, 1.10.18, 1.10.19, 1.10.20, 1.10.21, 1.10.22, 1.10.23, 1.10.24, 1.10.25, 1.10.26, 1.11.0, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.11.5, 1.11.6, 1.12.0, 1.12.1, 1.12.2, 1.13.0, 1.13.1, 1.13.2, 1.13.3, 1.13.4, 1.13.5, 1.13.6, 1.13.7, 1.13.8, 1.13.9, 1.13.10, 1.13.11