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CVE-2018-12371

Estado: ModificadaAlta (8.8)—

Una vulnerabilidad de desbordamiento de enteros en la biblioteca Skia al asignar memoria para constructores de bordes en algunos sistemas con al menos 16 GB de RAM. Esto resulta en el uso de memoria no inicializada, resultando en un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 60.1, Thunderbird versiones anteriores a 60 y Firefox versiones anteriores a 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 (2)

Mozilla — FirefoxMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2018-12371",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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        "obtainOtherPrivilege": false,
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          "version": "3.1",
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Mozilla",
          "product": "Firefox ESR",
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          "vendor": "Mozilla",
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  "published": "2020-07-09T14:15:10.447",
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      "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-190"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 16 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 60.1, Thunderbird < 60, and Firefox < 61."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de desbordamiento de enteros en la biblioteca Skia al asignar memoria para constructores de bordes en algunos sistemas con al menos 16 GB de RAM. Esto resulta en el uso de memoria no inicializada, resultando en un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 60.1, Thunderbird versiones anteriores a 60 y Firefox versiones anteriores a 61"
    }
  ],
  "lastModified": "2026-06-17T01:37:38.610",
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    {
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}