MEDIUM 5.3
PYSEC-2024-164
Details
Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. If an excessively large value is specified as the starting index for an array in `_abi_decode`, it can cause the read position to overflow. This results in the decoding of values outside the intended array bounds, potentially leading to exploitations in contracts that use arrays within `_abi_decode`. This vulnerability affects 0.3.10 and earlier versions.
Are you affected?
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Affected packages
References
- https://github.com/vyperlang/vyper/security/advisories/GHSA-9p8r-4xp4-gw5w [ADVISORY]
- https://github.com/vyperlang/vyper/security/advisories/GHSA-9p8r-4xp4-gw5w [EVIDENCE]
- https://github.com/vyperlang/vyper/security/advisories/GHSA-9p8r-4xp4-gw5w [FIX]
- https://github.com/advisories/GHSA-9p8r-4xp4-gw5w [ADVISORY]