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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AIMiggo AIRoot Cause AnalysisThe vulnerability stems from how fork choice handles timestamp-based difficulty adjustments and tiebreaking. The ReorgNeeded function in forkchoice.go (lines 91-94 referenced in advisories) implements logic where manipulated timestamps could create equal-difficulty scenarios, triggering the vulnerable probabilistic tiebreaker. This matches the described RUM attack vector where timestamp manipulation enables main-chain replacement without risk.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| github.com/ethereum/go-ethereum | go | <= 1.10.21 |
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