{ "id": "CVE-2020-26264", "sourceIdentifier": "security-advisories@github.com", "published": "2020-12-11T17:15:12.793", "lastModified": "2024-11-21T05:19:41.910", "vulnStatus": "Modified", "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. 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. Esta vulnerabilidad solo afecta a usuarios que habilitan expl\u00edcitamente el servidor de archivos; deshabilitar archivos evita la explotaci\u00f3n. La vulnerabilidad fue parcheada en versi\u00f3n 1.9.25" } ], "metrics": { "cvssMetricV31": [ { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 2.8, "impactScore": 3.6 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 2.8, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "baseScore": 4.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-400" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-400" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.9.25", "matchCriteriaId": "5AC7FBD4-34A5-414C-BBBA-2512124CFBF0" } ] } ] } ], "references": [ { "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": [ "Patch", "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": "security-advisories@github.com", "tags": [ "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": [ "Patch", "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", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] } ] }