highOracle manipulationEVM-Solidity
Optimism: L2 precompile calls can be impossible to reproduce on L1
- Payout
- $0
- Protocol
- Optimism
- Disclosed
- Aug 16, 2024
- Source
- code4rena
Optimism's fault-proof system uses a PreimageOracle on L1 to re-execute specific L2 precompiles. Certain precompiles, such as bn256Pairing, have dynamic gas costs that allow them to consume nearly the full block gas limit in a single transaction. Due to the in …
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References
- https://github.com/code-423n4/2024-07-optimism-findings/issues/22
- https://github.com/code-423n4/2024-07-optimism-findings
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