CVE-2020-26264

{"containers": {"cna": {"affected": [{"product": "go-ethereum", "vendor": "ethereum", "versions": [{"status": "affected", "version": "< 1.9.25"}]}], "descriptions": [{"lang": "en", "value": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "description": "CWE-400 Uncontrolled Resource Consumption", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-12-11T16:45:24.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/ethereum/go-ethereum/pull/21896"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25"}], "source": {"advisory": "GHSA-r33q-22hv-j29q", "discovery": "UNKNOWN"}, "title": "LES Server DoS via GetProofsV2", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-26264", "STATE": "PUBLIC", "TITLE": "LES Server DoS via GetProofsV2"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "go-ethereum", "version": {"version_data": [{"version_value": "< 1.9.25"}]}}]}, "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 before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-400 Uncontrolled Resource Consumption"}]}]}, "references": {"reference_data": [{"name": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q", "refsource": "CONFIRM", "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q"}, {"name": "https://github.com/ethereum/go-ethereum/pull/21896", "refsource": "MISC", "url": "https://github.com/ethereum/go-ethereum/pull/21896"}, {"name": "https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46", "refsource": "MISC", "url": "https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46"}, {"name": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25", "refsource": "MISC", "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25"}]}, "source": {"advisory": "GHSA-r33q-22hv-j29q", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T15:56:04.248Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ethereum/go-ethereum/pull/21896"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-26264", "datePublished": "2020-12-11T16:45:24.000Z", "dateReserved": "2020-10-01T00:00:00.000Z", "dateUpdated": "2024-08-04T15:56:04.248Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "go-ethereum", "vendor": "ethereum", "versions": [{"status": "affected", "version": "< 1.9.25"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*", "matchCriteriaId": "5AC7FBD4-34A5-414C-BBBA-2512124CFBF0", "versionEndExcluding": "1.9.25", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25."}, {"lang": "es", "value": "Go Ethereum, o \"Geth\", es la implementaci\u00f3n oficial de Golang del protocolo Ethereum.&#xa0;En Geth versiones anteriores a 1.9.25, una vulnerabilidad de Denegaci\u00f3n de Servicio puede hacer a un servidor LES bloquearse por medio de una petici\u00f3n GetProofsV2 maliciosa de un cliente LES conectado.&#xa0;Esta vulnerabilidad solo afecta a usuarios que habilitan expl\u00edcitamente el servidor de archivos;&#xa0;deshabilitar archivos evita la explotaci\u00f3n.&#xa0;La vulnerabilidad fue parcheada en versi\u00f3n 1.9.25"}], "id": "CVE-2020-26264", "lastModified": "2026-06-17T03:07:57.273", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-11T17:15:12.793", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ethereum/go-ethereum/pull/21896"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ethereum/go-ethereum/pull/21896"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}