fkie_cve-2020-26972
Vulnerability from fkie_nvd
Published
2021-01-07 14:15
Modified
2024-11-21 05:20
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1671382Permissions Required
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2020-54/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1671382Permissions Required
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-54/Vendor Advisory
Impacted products
Vendor Product Version
mozilla firefox *


To clipboard 

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      "nodes": [
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            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "85154F06-6654-493F-8630-38637ED7D8D0",
              "versionEndExcluding": "84.0",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox \u003c 84."
    },
    {
      "lang": "es",
      "value": "El ciclo de vida de IPC Actors, permite a actores administrados sobrevivir a sus actores administradores;\u0026#xa0;y los primeros deben asegurarse de que no est\u00e1n intentando usar a un actor eliminado al que presentan en una referencia.\u0026#xa0;Esta comprobaci\u00f3n se omiti\u00f3 en WebGL, resultando en un uso de la memoria previamente liberada y un bloqueo potencialmente explotable.\u0026#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 84"
    }
  ],
  "id": "CVE-2020-26972",
  "lastModified": "2024-11-21T05:20:36.333",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
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  "published": "2021-01-07T14:15:11.813",
  "references": [
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      "tags": [
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1671382"
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}


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