{
  "id": "CVE-2023-4236",
  "sourceIdentifier": "security-officer@isc.org",
  "published": "2023-09-20T13:15:12.313",
  "lastModified": "2023-09-22T18:35:33.337",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw in the networking code handling DNS-over-TLS queries may cause `named` to terminate unexpectedly due to an assertion failure. This happens when internal data structures are incorrectly reused under significant DNS-over-TLS query load.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.18 and 9.18.11-S1 through 9.18.18-S1."
    },
    {
      "lang": "es",
      "value": "Una falla en el c\u00f3digo de red que maneja consultas DNS sobre TLS puede causar que \"named\" finalice inesperadamente debido a una falla de aserci\u00f3n. Esto sucede cuando las estructuras de datos internas se reutilizan incorrectamente bajo una carga significativa de consultas DNS sobre TLS. Este problema afecta a las versiones 9.18.0 a 9.18.18 y 9.18.11-S1 a 9.18.18-S1 de BIND 9."
    }
  ],
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
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  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-617"
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  "references": [
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      "url": "http://www.openwall.com/lists/oss-security/2023/09/20/2",
      "source": "security-officer@isc.org",
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      "url": "https://kb.isc.org/docs/cve-2023-4236",
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}