Vyper is a Pythonic Smart Contract Language for the EVM. There is an error in the stack management when compiling the `IR` for `sha3_64`. Concretely, the `height` variable is miscalculated. The vulnerability can\'t be triggered without writing the `IR` by hand (that is, it cannot be triggered from regular vyper code). `sha3_64` is used for retrieval in mappings. No flow that would cache the `key` was found so the issue shouldn\'t be possible to trigger when compiling the compiler-generated `IR`. This issue isn\'t triggered during normal compilation of vyper code so the impact is low. At the time of publication there is no patch available.
Metrics
CVSS Version: 3.1 |
Base Score: 3.7 LOW Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N