CVE-2022-31172
Last modified
CVE-2022-31172 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. OpenZeppelin Contracts is a library for smart contract development. Versions 4.1.0 until 4.7.1 are vulnerable to the SignatureChecker reverting. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openzeppelin | Contracts | >= 4.1.0, < 4.7.1 |
References
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552Patch, Third Party Advisory
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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