mediumAccess controlEVM-Solidity
zkSync: Wrong encoding of the data in the `sendCompressedBytecode` function
- Payout
- $0
- Protocol
- zkSync
- Disclosed
- Feb 29, 2024
- Source
- code4rena
zkSync's bootloader intentionally validates that the calldata it forwards to Compressor::publishCompressedBytecode is strictly ABI-encoded, but that validation is incomplete and its offset arithmetic is unsafe. Because the code never checks that originalByteco …
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References
- https://github.com/code-423n4/2023-10-zksync-findings/issues/807
- https://github.com/code-423n4/2023-10-zksync-findings
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