Vulnerability Information
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Vulnerability Title
Vyper: incorrect order of evaluation of side effects for some builtins
Vulnerability Description
Vyper is a Pythonic Smart Contract Language. In affected versions the order of evaluation of the arguments of the builtin functions `uint256_addmod`, `uint256_mulmod`, `ecadd` and `ecmul` does not follow source order. This behaviour is problematic when the evaluation of one of the arguments produces side effects that other arguments depend on. A patch is currently being developed on pull request #3583. When using builtins from the list above, users should make sure that the arguments of the expression do not produce side effects or, if one does, that no other argument is dependent on those side effects.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Vulnerability Type
控制流实现总是不正确
Vulnerability Title
Vyper 安全漏洞
Vulnerability Description
Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.3.9版本及之前版本存在安全漏洞，该漏洞源于内置函数“uint256_addmod”、“uint256_mulmod”、“ecadd”和“ecmul”的参数求值顺序不遵循源代码顺序。
CVSS Information
N/A
Vulnerability Type
N/A