Vulnerability Details CVE-2022-31172
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 12.5%
CVSS Severity
CVSS v3 Score 7.5
References
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4g63-c64m-25w9
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4g63-c64m-25w9
Products affected by CVE-2022-31172
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cpe:2.3:a:openzeppelin:contracts:4.1.0
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cpe:2.3:a:openzeppelin:contracts:4.2.0
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cpe:2.3:a:openzeppelin:contracts:4.3.0
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cpe:2.3:a:openzeppelin:contracts:4.3.1
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cpe:2.3:a:openzeppelin:contracts:4.3.2
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cpe:2.3:a:openzeppelin:contracts:4.3.3
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cpe:2.3:a:openzeppelin:contracts:4.4.0
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cpe:2.3:a:openzeppelin:contracts:4.4.1
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cpe:2.3:a:openzeppelin:contracts:4.4.2
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cpe:2.3:a:openzeppelin:contracts:4.5.0
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cpe:2.3:a:openzeppelin:contracts:4.6.0
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cpe:2.3:a:openzeppelin:contracts:4.7.0