CVE-2023-32058— Vyper 输入验证错误漏洞

Vyper vulnerable to integer overflow in loop

Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, due to missing overflow check for loop variables, by assigning the iterator of a loop to a variable, it is possible to overflow the type of the latter. The issue seems to happen only in loops of type `for i in range(a, a + N)` as in loops of type `for i in range(start, stop)` and `for i in range(stop)`, the compiler is able to raise a `TypeMismatch` when trying to overflow the variable. The problem has been patched in version 0.3.8.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

整数溢出或超界折返

Vyper 输入验证错误漏洞

Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.3.8之前版本存在输入验证错误漏洞，该漏洞源于缺少对循环变量的溢出检查。

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