Описание
Ethereum Contains Consensus Flaw During Block Processing
Impact
A vulnerability in the Geth EVM could cause a node to reject the canonical chain.
Description
A memory-corruption bug within the EVM can cause a consensus error, where vulnerable nodes obtain a different stateRoot when processing a maliciously crafted transaction. This, in turn, would lead to the chain being split in two forks.
All Geth versions supporting the London hard fork are vulnerable (which predates London), so all users should update.
This bug was exploited on Mainnet at block 13107518, leading to a minority chain split.
Patches
A patch is included in the v1.10.8 release.
The exact patch to fix the issue is contained within this commit
Workarounds
No workarounds exist, save to update and/or apply the patch commit.
References.
Post-mortem write-up.
Credits
The bug was found by @guidovranken (working for Sentnl during an audit of the Telos EVM) and reported via bounty@ethereum.org.
For more information
If you have any questions or comments about this advisory:
- Open an issue in go-ethereum
- Email us at security@ethereum.org
Ссылки
- https://github.com/ethereum/go-ethereum/security/advisories/GHSA-9856-9gg9-qcmq
- https://nvd.nist.gov/vuln/detail/CVE-2021-39137
- https://github.com/ethereum/go-ethereum/pull/23381/commits/4d4879cafd1b3c906fc184a8c4a357137465128f
- https://github.com/ethereum/go-ethereum/releases/tag/v1.10.8
- https://pkg.go.dev/vuln/GO-2022-0254
Пакеты
github.com/ethereum/go-ethereum
>= 1.10.0, < 1.10.8
1.10.8
Связанные уязвимости
go-ethereum is the official Go implementation of the Ethereum protocol. In affected versions a consensus-vulnerability in go-ethereum (Geth) could cause a chain split, where vulnerable versions refuse to accept the canonical chain. Further details about the vulnerability will be disclosed at a later date. A patch is included in the upcoming `v1.10.8` release. No workaround are available.
go-ethereum is the official Go implementation of the Ethereum protocol ...
Уязвимость клиента Geth библиотеки протокола Ethereum языка программирования GO Go Ethereum, позволяющая нарушителю вызвать отказ в обслуживании