ghsa-4g63-c64m-25w9
Vulnerability from github
Published
2022-07-21 22:33
Modified
2022-07-21 22:33
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
OpenZeppelin Contracts's SignatureChecker may revert on invalid EIP-1271 signers
Details

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 security@openzeppelin.com.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@openzeppelin/contracts"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "4.7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@openzeppelin/contracts-upgradeable"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "4.7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-31172"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-07-21T22:33:37Z",
    "nvd_published_at": "2022-07-22T04:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\n`SignatureChecker.isValidSignatureNow` is not expected to revert. However, an incorrect assumption about Solidity 0.8\u0027s `abi.decode` allows some cases to revert, given a target contract that doesn\u0027t implement EIP-1271 as expected.\n\nThe 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.\n\n### Patches\n\nThe issue was patched in 4.7.1.\n\n### References\n\nhttps://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552\n\n### For more information\n\nIf you have any questions or comments about this advisory, or need assistance deploying the fix, email us at [security@openzeppelin.com](mailto:security@openzeppelin.com).",
  "id": "GHSA-4g63-c64m-25w9",
  "modified": "2022-07-21T22:33:37Z",
  "published": "2022-07-21T22:33:37Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4g63-c64m-25w9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31172"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenZeppelin Contracts\u0027s SignatureChecker may revert on invalid EIP-1271 signers"
}


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