Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS00ZzYzLWM2NG0tMjV3Oc4AAtkM

OpenZeppelin Contracts's SignatureChecker may revert on invalid EIP-1271 signers

Impact

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. We believe this to be unlikely.

Patches

The issue was patched in 4.7.1.

References

https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552

For more information

If you have any questions or comments about this advisory, or need assistance deploying the fix, email us at [email protected].

Permalink: https://github.com/advisories/GHSA-4g63-c64m-25w9
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS00ZzYzLWM2NG0tMjV3Oc4AAtkM
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 2 years ago
Updated: about 1 year ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Identifiers: GHSA-4g63-c64m-25w9, CVE-2022-31172
References:

• https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4g63-c64m-25w9
• https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552
• https://nvd.nist.gov/vuln/detail/CVE-2022-31172
• https://github.com/advisories/GHSA-4g63-c64m-25w9

Repository: https://github.com/OpenZeppelin/openzeppelin-contracts
Blast Radius: 34.1

Affected Packages