Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openzeppelin | Contracts | >= 4.0.0, < 4.7.1 |
Related Weaknesses (CWE)
References
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552PatchThird Party Advisory
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-Third Party Advisory
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552PatchThird Party Advisory
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-Third Party Advisory
FAQ
What is CVE-2022-31170?
CVE-2022-31170 is a vulnerability with a CVSS score of 7.5 (HIGH). 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`...
How severe is CVE-2022-31170?
CVE-2022-31170 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-31170?
Check the references section above for vendor advisories and patch information. Affected products include: Openzeppelin Contracts.