CVE-2020-26240

Erroneous Proof of Work calculation in geth

CVSS 5.3 MEDIUMEPSS 1.6%CWE-682

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

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

Affected products

ethereum · go-ethereum

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://blog.ethereum.org/2020/11/12/geth_security_release/https://github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0 https://github.com/ethereum/go-ethereum/pull/21793 https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856p