GHSA-qh9x-gcfh-pcrw OpenZeppelin Contracts's ERC165Checker may revert instead of returning false

• npm @openzeppelin/contracts: >= 4.0.0, < 4.7.1 → fixed in 4.7.1 • npm @openzeppelin/contracts-upgradeable: >= 4.0.0, < 4.7.1 → fixed in 4.7.1

Impact `ERC165Checker.supportsInterface` is designed to always successfully return a boolean, and under no circumstance revert. However, an incorrect assumption about Solidity 0.8's `abi.decode` allows some cases to revert, given a target contract that doesn't implement EIP-165 as expected, specifically if it returns a value other than 0 or 1. The contracts that may be affected are those that use `ERC165Checker` to check for support for an interface and then handle the lack of support in a way other than reverting. Patches The issue was patched in 4.7.1. References https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552 For more information If you have any questions or comments about this advisory, or need assistance deploying the fix, email us at [email protected].