FKIE_CVE-2021-42389

Vulnerability from fkie_nvd - Published: 2022-03-14 23:15 - Updated: 2025-06-25 20:49
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Divide-by-zero in Clickhouse's Delta 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.
References
reefs@jfrog.comhttps://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbmsExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbmsExploit, Third Party Advisory
Impacted products
Vendor Product Version
clickhouse clickhouse *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:clickhouse:clickhouse:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4CD6B56E-9355-4A1F-9FF8-4FA097CF8AB4",
              "versionEndExcluding": "21.10.2.15",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Divide-by-zero in Clickhouse\u0027s Delta 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 Delta 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"
    }
  ],
  "id": "CVE-2021-42389",
  "lastModified": "2025-06-25T20:49:29.357",
  "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-03-14T23:15:08.017",
  "references": [
    {
      "source": "reefs@jfrog.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms"
    }
  ],
  "sourceIdentifier": "reefs@jfrog.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-369"
        }
      ],
      "source": "reefs@jfrog.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-369"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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