CVE-2021-42391

{"id": "CVE-2021-42391", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2022-03-14T23:15:08.113", "references": [{"url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms", "tags": ["Exploit", "Third Party Advisory"], "source": "reefs@jfrog.com"}, {"url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "reefs@jfrog.com", "description": [{"lang": "en", "value": "CWE-369"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-369"}]}], "descriptions": [{"lang": "en", "value": "Divide-by-zero in Clickhouse's Gorilla compression codec when parsing a malicious query. The first byte of the compressed buffer is used in a modulo operation without being checked for 0."}, {"lang": "es", "value": "Una divisi\u00f3n por cero en el c\u00f3dec de compresi\u00f3n Gorilla de Clickhouse cuando es analizada una consulta maliciosa. El primer byte del b\u00fafer comprimido es usado en una operaci\u00f3n de m\u00f3dulo sin que sea comprobado el 0"}], "lastModified": "2025-06-25T20:49:29.357", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:clickhouse:clickhouse:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4CD6B56E-9355-4A1F-9FF8-4FA097CF8AB4", "versionEndExcluding": "21.10.2.15"}], "operator": "OR"}]}], "sourceIdentifier": "reefs@jfrog.com"}