Description
Go Ethereum (aka geth) through 1.10.21 allows attackers to increase rewards by mining blocks in certain situations, and using a manipulation of time-difference values to achieve replacement of main-chain blocks, aka Riskless Uncle Making (RUM), as exploited in the wild in 2020 through 2022.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | geth | 1.10.22-r0 | — |
| Alpine v3.23 | geth | 1.10.22-r0 | — |
| Alpine v3.22 | geth | 1.10.22-r0 | — |
| Alpine v3.21 | geth | 1.10.22-r0 | — |
| Alpine v3.20 | geth | 1.10.22-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | geth | 1.10.22-r0 | — |
| Alpine v3.18 | geth | 1.10.22-r0 | — |
| Alpine v3.17 | geth | 1.10.22-r0 | — |
| Alpine v3.16 | geth | 1.10.22-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/ethereum/go-ethereum | <= 1.10.21 | — | GHSA-rqmg-hrg4-fm69 |
References
- https://github.com/ethereum/go-ethereum/blob/671094279e8d27f4b4c3c94bf8b636c26b473976/core/forkchoice.go#L91-L94
- https://medium.com/%40aviv.yaish/uncle-maker-time-stamping-out-the-competition-in-ethereum-d27c1cb62fef
- http://dx.doi.org/10.13140/RG.2.2.27813.99043
- https://news.ycombinator.com/item?id=32354896