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FKIE_CVE-2020-29367

Vulnerability from fkie_nvd - Published: 2020-11-27 20:15 - Updated: 2026-06-17 03:11
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
blosc2.c in Blosc C-Blosc2 through 2.0.0.beta.5 has a heap-based buffer overflow when there is a lack of space to write compressed data.
References
cve@mitre.orghttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26442Mailing List, Third Party Advisory
cve@mitre.orghttps://github.com/Blosc/c-blosc2/commit/c4c6470e88210afc95262c8b9fcc27e30ca043eePatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26442Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Blosc/c-blosc2/commit/c4c6470e88210afc95262c8b9fcc27e30ca043eePatch, Third Party Advisory
Impacted products
Vendor Product Version
blosc c-blosc2 2.0.0
blosc c-blosc2 2.0.0
blosc c-blosc2 2.0.0
blosc c-blosc2 2.0.0
blosc c-blosc2 2.0.0
blosc c-blosc2 2.0.0
blosc c-blosc2 2.0.0
blosc c-blosc2 2.0.0
blosc c-blosc2 2.0.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:alpha2:*:*:*:*:*:*",
              "matchCriteriaId": "7406AFCF-1E42-4EB2-A451-C920300F0A4C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:alpha3:*:*:*:*:*:*",
              "matchCriteriaId": "7AFF5D14-E754-490F-A3BF-106FB8A9C769",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:alpha4:*:*:*:*:*:*",
              "matchCriteriaId": "EBED35CA-043F-4221-9556-9D8A0BB5B0AB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:alpha5:*:*:*:*:*:*",
              "matchCriteriaId": "D444841F-B5A8-4531-AFE2-CDD08832CC06",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:beta1:*:*:*:*:*:*",
              "matchCriteriaId": "64F730FC-8189-4BA9-B5B3-3E660714F896",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:beta2:*:*:*:*:*:*",
              "matchCriteriaId": "C7353452-D2B7-455D-99B7-BF50528A5C8C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:beta3:*:*:*:*:*:*",
              "matchCriteriaId": "B98A7279-663F-4459-8DCD-648A2EE5F7DB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:beta4:*:*:*:*:*:*",
              "matchCriteriaId": "8E1508A5-4D21-4247-97A7-31E02A4C3594",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:blosc:c-blosc2:2.0.0:beta5:*:*:*:*:*:*",
              "matchCriteriaId": "814AF691-FA03-4159-8F4C-92B69B3FED84",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "blosc2.c in Blosc C-Blosc2 through 2.0.0.beta.5 has a heap-based buffer overflow when there is a lack of space to write compressed data."
    },
    {
      "lang": "es",
      "value": "El archivo blosc2.c en Blosc C-Blosc2 hasta versi\u00f3n 2.0.0.beta.5. presenta un desbordamiento de b\u00fafer en la regi\u00f3n heap de la memoria cuando carece de espacio para escribir datos comprimidos"
    }
  ],
  "id": "CVE-2020-29367",
  "lastModified": "2026-06-17T03:11:13.310",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.3,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-11-27T20:15:11.090",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26442"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Blosc/c-blosc2/commit/c4c6470e88210afc95262c8b9fcc27e30ca043ee"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26442"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Blosc/c-blosc2/commit/c4c6470e88210afc95262c8b9fcc27e30ca043ee"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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