{
  "id": "CVE-2021-36088",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-07-01T03:15:08.847",
  "lastModified": "2024-05-23T16:15:08.583",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "Fluent Bit (aka fluent-bit) 1.7.0 through 1.7.4 has a double free in flb_free (called from flb_parser_json_do and flb_parser_do)."
    },
    {
      "lang": "es",
      "value": "Fluent Bit (tambi\u00e9n se conoce como fluent-bit) versiones 1.7.0 hasta 1.7,4 presenta una doble liberaci\u00f3n en la funci\u00f3n flb_free (llamado desde flb_parser_json_do y flb_parser_do)"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:treasuredata:fluent_bit:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.7.0",
              "versionEndIncluding": "1.7.4",
              "matchCriteriaId": "ADC73357-2D28-4021-AEF7-0CB5CE9D9011"
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  ],
  "references": [
    {
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33750",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/fluent/fluent-bit/commit/22346a74c07ceb90296be872be2d53eb92252a54",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
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    },
    {
      "url": "https://github.com/fluent/fluent-bit/pull/3453",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/fluent-bit/OSV-2021-702.yaml",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}