Description
OpenZeppelin Contracts is a library for smart contract development. Versions 4.0.0 until 4.7.1 are vulnerable to ERC165Checker reverting instead of returning `false`. `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. The issue was patched in version 4.7.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenZeppelin | openzeppelin-contracts | >= 4.0.0, < 4.7.1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | @openzeppelin/contracts | >= 4.0.0, < 4.7.1 | 4.7.1 | GHSA-qh9x-gcfh-pcrw |
| npm | @openzeppelin/contracts-upgradeable | >= 4.0.0, < 4.7.1 | 4.7.1 | GHSA-qh9x-gcfh-pcrw |