Vulnerability Description
OpenZeppelin Contracts is a library for smart contract development. Versions 4.1.0 until 4.7.1 are vulnerable to the SignatureChecker reverting. `SignatureChecker.isValidSignatureNow` is not expected to 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-1271 as expected. The contracts that may be affected are those that use `SignatureChecker` to check the validity of a signature and handle invalid signatures 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 | >= 4.1.0, < 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-2022-31172?
CVE-2022-31172 is a vulnerability with a CVSS score of 7.5 (HIGH). OpenZeppelin Contracts is a library for smart contract development. Versions 4.1.0 until 4.7.1 are vulnerable to the SignatureChecker reverting. `SignatureChecker.isValidSignatureNow` is not expected ...
How severe is CVE-2022-31172?
CVE-2022-31172 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-2022-31172?
Check the references section above for vendor advisories and patch information. Affected products include: Openzeppelin Contracts.