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CVE-2018-12367

Estado: ModificadaMedia (4.3)—

En las mitigaciones anteriores para Spectre, la resolución o precisión de varios métodos se redujo para contrarrestar la capacidad de medir intervalos de tiempo precisos. En ese trabajo, no se ajustó PerformanceNavigationTiming, pero se descubrió que podría emplearse como temporizador de precisión. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 60, Firefox ESR en versiones anteriores a la 60.1 y Firefox en versiones anteriores a la 61.

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)

Canonical — Ubuntu LinuxDebian — Debian LinuxMozilla — FirefoxMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2018-12367",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
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          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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          "value": "CWE-20"
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      "value": "In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, and Firefox < 61."
    },
    {
      "lang": "es",
      "value": "En las mitigaciones anteriores para Spectre, la resolución o precisión de varios métodos se redujo para contrarrestar la capacidad de medir intervalos de tiempo precisos. En ese trabajo, no se ajustó PerformanceNavigationTiming, pero se descubrió que podría emplearse como temporizador de precisión. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 60, Firefox ESR en versiones anteriores a la 60.1 y Firefox en versiones anteriores a la 61."
    }
  ],
  "lastModified": "2026-06-17T01:37:38.030",
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