Vulnerability-Lookup

CVE-2021-42387 (GCVE-0-2021-42387)

Vulnerability from cvelistv5 – Published: 2022-03-14 00:00 – Updated: 2024-08-04 03:30

Summary

Heap out-of-bounds read in Clickhouse's LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value ('offset') is read from the compressed data. The offset is later used in the length of a copy operation, without checking the upper bounds of the source of the copy operation.

Severity ?

No CVSS data available.

CWE

CWE-125

Assigner

JFROG

References

URL

	Vendor	Product	Version
	yandex	clickhouse	Affected: unspecified , < 21.10.2.15-stable (custom)

GSD-2021-42387

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-42387

Aliases

CVE-2021-42387

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-42387",
    "description": "Heap out-of-bounds read in Clickhouse\u0027s LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value (\u0027offset\u0027) is read from the compressed data. The offset is later used in the length of a copy operation, without checking the upper bounds of the source of the copy operation.",
    "id": "GSD-2021-42387"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-42387"
      ],
      "details": "Heap out-of-bounds read in Clickhouse\u0027s LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value (\u0027offset\u0027) is read from the compressed data. The offset is later used in the length of a copy operation, without checking the upper bounds of the source of the copy operation.",
      "id": "GSD-2021-42387",
      "modified": "2023-12-13T01:23:06.447112Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@jfrog.com",
        "ID": "CVE-2021-42387",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "clickhouse",
                    "version": {
                      "version_data": [
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "",
                          "version_value": "21.10.2.15-stable"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "yandex"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Heap out-of-bounds read in Clickhouse\u0027s LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value (\u0027offset\u0027) is read from the compressed data. The offset is later used in the length of a copy operation, without checking the upper bounds of the source of the copy operation."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-125"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms",
            "refsource": "MISC",
            "url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms"
          },
          {
            "name": "[debian-lts-announce] 20221104 [SECURITY] [DLA 3176-1] clickhouse security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:yandex:clickhouse:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "21.10.2.15",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@jfrog.com",
          "ID": "CVE-2021-42387"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Heap out-of-bounds read in Clickhouse\u0027s LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value (\u0027offset\u0027) is read from the compressed data. The offset is later used in the length of a copy operation, without checking the upper bounds of the source of the copy operation."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-125"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms"
            },
            {
              "name": "[debian-lts-announce] 20221104 [SECURITY] [DLA 3176-1] clickhouse security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2022-12-03T02:47Z",
      "publishedDate": "2022-03-14T23:15Z"
    }
  }
}

FKIE_CVE-2021-42387

Vulnerability from fkie_nvd - Published: 2022-03-14 23:15 - Updated: 2025-06-25 20:49

Severity ?

8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Summary

References

URL	Tags
reefs@jfrog.com	https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms	Exploit, Third Party Advisory
reefs@jfrog.com	https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	clickhouse	clickhouse	*
	debian	debian_linux	10.0

JSON

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"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap out-of-bounds read in Clickhouse\u0027s LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value (\u0027offset\u0027) is read from the compressed data. The offset is later used in the length of a copy operation, without checking the upper bounds of the source of the copy operation."
    },
    {
      "lang": "es",
      "value": "Una lectura fuera de l\u00edmites de la pila en el c\u00f3dec de compresi\u00f3n LZ4 de Clickhouse cuando es analizada una consulta maliciosa. Como parte del bucle LZ4::decompressImpl(), es le\u00eddo un valor de 16 bits sin signo proporcionado por el usuario (\"offset\") de los datos comprimidos. El offset es usado posteriormente en la longitud de una operaci\u00f3n de copia, sin comprobar los l\u00edmites superiores del origen de la operaci\u00f3n de copia"
    }
  ],
  "id": "CVE-2021-42387",
  "lastModified": "2025-06-25T20:49:29.357",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-03-14T23:15:07.917",
  "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": "reefs@jfrog.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html"
    },
    {
      "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"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html"
    }
  ],
  "sourceIdentifier": "reefs@jfrog.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "reefs@jfrog.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-CF9G-639P-3WVV

Vulnerability from github – Published: 2022-03-16 00:00 – Updated: 2022-03-23 00:00

Details

Severity ?

8.1 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-42387"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-14T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "Heap out-of-bounds read in Clickhouse\u0027s LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value (\u0027offset\u0027) is read from the compressed data. The offset is later used in the length of a copy operation, without checking the upper bounds of the source of the copy operation.",
  "id": "GHSA-cf9g-639p-3wvv",
  "modified": "2022-03-23T00:00:46Z",
  "published": "2022-03-16T00:00:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42387"
    },
    {
      "type": "WEB",
      "url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2021-42387 (GCVE-0-2021-42387)

GSD-2021-42387

FKIE_CVE-2021-42387

GHSA-CF9G-639P-3WVV

Tags

Sightings

Nomenclature