cvelist/2020/26xxx/CVE-2020-26265.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-26265",
        "STATE": "PUBLIC",
        "TITLE": "Consensus flaw during block processing"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "go-ethereum",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": ">= 1.9.4, < 1.9.20"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "ethereum"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. In Geth from version 1.9.4 and before version 1.9.20 a consensus-vulnerability could cause a chain split, where vulnerable versions refuse to accept the canonical chain. The fix was included in the Paragade release version 1.9.20. No individual workaround patches have been made -- all users are recommended to upgrade to a newer version."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-682 Incorrect Calculation"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-xw37-57qp-9mm4",
                "refsource": "CONFIRM",
                "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-xw37-57qp-9mm4"
            },
            {
                "name": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.20",
                "refsource": "MISC",
                "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.20"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-xw37-57qp-9mm4",
        "discovery": "UNKNOWN"
    }
}