{
  "id": "CVE-2021-36089",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-07-01T03:15:08.883",
  "lastModified": "2021-07-06T21:04:08.783",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Grok 7.6.6 through 9.2.0 has a heap-based buffer overflow in grk::FileFormatDecompress::apply_palette_clr (called from grk::FileFormatDecompress::applyColour)."
    },
    {
      "lang": "es",
      "value": "Grok versiones 7.6.6 hasta 9.2.0, presenta un desbordamiento de b\u00fafer basado en la regi\u00f3n heap de la memoria en la funci\u00f3n grk::FileFormatDecompress::apply_palette_clr (llamado desde grk::FileFormatDecompress::applyColour)"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:zope:grok:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.6.6",
              "versionEndIncluding": "9.2.0",
              "matchCriteriaId": "6AF55307-BFE6-4308-93F1-DAAF41A136FC"
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  ],
  "references": [
    {
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33544",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/GrokImageCompression/grok/releases",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2021-677.yaml",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}