{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-35961",
        "STATE": "PUBLIC",
        "TITLE": "ECDSA signature malleability in OpenZeppelin Contracts"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "openzeppelin-contracts",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": ">= 4.1.0, < 4.7.3"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "OpenZeppelin"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "OpenZeppelin Contracts is a library for secure smart contract development. The functions `ECDSA.recover` and `ECDSA.tryRecover` are vulnerable to a kind of signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature format. This is only an issue for the functions that take a single `bytes` argument, and not the functions that take `r, v, s` or `r, vs` as separate arguments. The potentially affected contracts are those that implement signature reuse or replay protection by marking the signature itself as used rather than the signed message or a nonce included in it. A user may take a signature that has already been submitted, submit it again in a different form, and bypass this protection. The issue has been patched in 4.7.3."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.9,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-354: Improper Validation of Integrity Check Value"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h",
                "refsource": "CONFIRM",
                "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h"
            },
            {
                "name": "https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610",
                "refsource": "MISC",
                "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610"
            },
            {
                "name": "https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3",
                "refsource": "MISC",
                "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-4h98-2769-gh6h",
        "discovery": "UNKNOWN"
    }
}