CVE-2020-26240
published 2020-11-25CVE-2020-26240: 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…
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCNIHAN
EPSS
1.64%
73.5th percentile
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
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ethereum | go-ethereum | < 1.9.24 | 1.9.24 |
| ethereum | go_ethereum | < 1.9.24 | 1.9.24 |
| github.com | ethereum_go-ethereum | >= 0 < 1.9.24 | 1.9.24 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
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OSV
Erroneous Proof of Work calculation in geth in github.com/ethereum/go-ethereum
osv·2024-08-21
CVE-2020-26240 Erroneous Proof of Work calculation in geth in github.com/ethereum/go-ethereum
Erroneous Proof of Work calculation in geth in github.com/ethereum/go-ethereum
Erroneous Proof of Work calculation in geth in github.com/ethereum/go-ethereum
OSV
Erroneous Proof of Work calculation in geth
osv·2021-06-29
CVE-2020-26240 [MEDIUM] Erroneous Proof of Work calculation in geth
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.
### 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.
### Workarounds
This PR implements a patch: https://github.com/ethereum/go-ethereum/pull/21793
### References
https://blog.ethereum.org/2020/11/12/geth_security_release/
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [go-ethereum](https://github.com/ethereum/go-ethereum)
* Email us at
GHSA
Erroneous Proof of Work calculation in geth
ghsa·2021-06-29
CVE-2020-26240 [MEDIUM] CWE-682 Erroneous Proof of Work calculation in geth
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.
### 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.
### Workarounds
This PR implements a patch: https://github.com/ethereum/go-ethereum/pull/21793
### References
https://blog.ethereum.org/2020/11/12/geth_security_release/
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [go-ethereum](https://github.com/ethereum/go-ethereum)
* Email us at
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://blog.ethereum.org/2020/11/12/geth_security_release/https://github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0https://github.com/ethereum/go-ethereum/pull/21793https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856phttps://blog.ethereum.org/2020/11/12/geth_security_release/https://github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0https://github.com/ethereum/go-ethereum/pull/21793https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856p
2020-11-25
Published