mediumLogic errorEVM-Solidity
Optimism: Missing address check for instructions LH and LHU
- Payout
- $0
- Protocol
- Optimism
- Disclosed
- Aug 16, 2024
- Source
- code4rena
Optimism's Cannon fault-proof VM implements the MIPS LH (load halfword) and LHU (load halfword unsigned) instructions in Solidity without enforcing the natural 2-byte address alignment mandated by the MIPS ISA specification. The memory access path masks addres …
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References
- https://github.com/code-423n4/2024-07-optimism-findings/issues/82
- https://github.com/code-423n4/2024-07-optimism-findings
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