mediumLogic errorEVM-Solidity
DittoETH: The `colRedeemed` variable is wrongly retrieved in `LibBytes::readProposalData` function
- Payout
- $0
- Protocol
- DittoETH
- Disclosed
- Jun 25, 2024
- Source
- code4rena
DittoETH's LibBytes::readProposalData decodes packed ProposalData records stored via SSTORE2 using inline assembly. When isolating the 11-byte colRedeemed field, the assembly uses add(0xffffffffffffffffffffff, shr(80, fullWord)) instead of the bitwise and, so …
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References
- https://github.com/code-423n4/2024-03-dittoeth-findings/issues/221
- https://github.com/code-423n4/2024-03-dittoeth-findings
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