Information Exposure Affecting @openzeppelin/contracts package, versions >=4.1.0 <4.7.1


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-JS-OPENZEPPELINCONTRACTS-2958050
  • published22 Jul 2022
  • disclosed21 Jul 2022
  • creditUnknown

Introduced: 21 Jul 2022

CVE-2022-31172  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade @openzeppelin/contracts to version 4.7.1 or higher.

Overview

@openzeppelin/contracts is a library for contract development.

Affected versions of this package are vulnerable to Information Exposure. 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.

References

CVSS Scores

version 3.1