CVE-2022-31170: 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…

PriorityP340high7.5CVSS 3.1

AVNACLPRNUINSUCNIHAN

EPSS

0.73%

50.2th percentile

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

4 ranges

Vendor	Product	Version range	Fixed in
openzeppelin	contracts	>= 4.0.0 < 4.7.1	4.7.1
openzeppelin	contracts	>= 4.0.0 < 4.7.1	4.7.1
openzeppelin	contracts-upgradeable	>= 4.0.0 < 4.7.1	4.7.1
openzeppelin	openzeppelin-contracts	—	—

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