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CVE-2019-11500

Estado: ModificadaCrítica (9.8)—

In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (4)

Debian — Debian LinuxDovecot — DovecotDovecot — PigeonholeFedoraproject — Fedora

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-11500",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "type": "Primary",
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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  ],
  "published": "2019-08-29T14:15:11.037",
  "references": [
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      "tags": [
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      "source": "cve@mitre.org"
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    {
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      "tags": [
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      "source": "cve@mitre.org"
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    },
    {
      "url": "https://dovecot.org/pipermail/dovecot-news/2019-August/000417.html",
      "tags": [
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    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00035.html",
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        "Third Party Advisory"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://www.dovecot.org/security.html",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution."
    },
    {
      "lang": "es",
      "value": "En Dovecot versiones anteriores a 2.2.36.4 y versiones 2.3.x  anteriores a 2.3.7.2 (y Pigeonhole versiones anteriores a 0.5.7.2), el procesamiento del protocolo puede fallar para cadenas entre comillas. Esto ocurre porque los caracteres '\\0' se manejan inapropiadamente y pueden generar escrituras fuera de límites y ejecución de código remota."
    }
  ],
  "lastModified": "2026-06-17T02:13:01.923",
  "configurations": [
    {
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        {
          "negate": false,
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            },
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              "vulnerable": true,
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              "versionStartIncluding": "2.3.0"
            },
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              "vulnerable": true,
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}