vyper performs double eval of the slice start/length args in certain cases

Summary Using the slice builtin can result in a double eval vulnerability when the buffer argument is either msg.data, self.code or .code and either the start or length arguments have side-effects. A contract search was performed and no vulnerable contracts were found in production. Having...

CVE-2024-32646

Vyper CVE-2024-32646 affects the Pythonic smart contract language. The vulnerability concerns the builtin slice when the buffer is msg.data, self.code, or .code and either the start or length has side-effects, causing a double evaluation of those side-effects. It is triggerable only in versions e...