{
  "id": "CVE-2020-36430",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-07-20T07:15:07.817",
  "lastModified": "2022-12-09T18:35:54.627",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction."
    },
    {
      "lang": "es",
      "value": "libass versiones 0.15.x anteriores a 0.15.1, presenta un desbordamiento de b\u00fafer en la regi\u00f3n heap de la memoria en la funci\u00f3n decode_chars (llamado desde decode_font y process_text) porque es usado el tipo de datos entero incorrecto para la sustracci\u00f3n"
    }
  ],
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        "type": "Primary",
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          "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"
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        "exploitabilityScore": 1.8,
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          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
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          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8
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        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
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        "acInsufInfo": false,
        "obtainAllPrivilege": false,
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      "description": [
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          "value": "CWE-787"
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  "references": [
    {
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
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      "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml",
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/",
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}