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

0.0
high

Snyk CVSS

    Attack Complexity Low
    Integrity High

    Threat Intelligence

    EPSS 0.06% (26th percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-JS-OPENZEPPELINCONTRACTSUPGRADEABLE-2958049
  • published 22 Jul 2022
  • disclosed 21 Jul 2022
  • credit Unknown
Report a new vulnerability Found a mistake?

Introduced: 21 Jul 2022

CVE-2022-31172 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade @openzeppelin/contracts-upgradeable to version 4.7.1 or higher.

Overview

@openzeppelin/contracts-upgradeable is a Secure Smart Contract library for Solidity.

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