CVE-2023-41052

Always-Incorrect Control Flow Implementation in pypi/vyper

Identifiers

CVE-2023-41052, GHSA-4hg4-9mf5-wxxq

Package Slug

pypi/vyper

Vulnerability

Always-Incorrect Control Flow Implementation

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.

Affected Versions

All versions up to 0.3.9

Solution

Upgrade to version 0.3.10 or above.

Last Modified

2023-09-05

source