CVE-2020-26265

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.20", "name": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.20", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-xw37-57qp-9mm4", "name": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-xw37-57qp-9mm4", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-682"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-26265", "ASSIGNER": "security-advisories@github.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 3.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.6}}, "publishedDate": "2020-12-11T17:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "1.9.20", "versionStartIncluding": "1.9.4"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-12-14T18:16Z"}