{
  "id": "CVE-2022-20421",
  "sourceIdentifier": "security@android.com",
  "published": "2022-10-11T20:15:12.533",
  "lastModified": "2022-12-03T02:42:49.350",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-239630375References: Upstream kernel"
    },
    {
      "lang": "es",
      "value": "En la funci\u00f3n binder_inc_ref_for_node del archivo binder.c, se presenta una posible forma de corromper la memoria debido a un uso de memoria previamente liberada. Esto podr\u00eda conllevar a una escalada local de privilegios sin ser necesarios privilegios de ejecuci\u00f3n adicionales. No es requerida una interacci\u00f3n del usuario para su explotaci\u00f3n. Producto: Android, Versiones: Android kernel, ID de Android: A-239630375, Referencias: Kernel ascendente"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Primary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
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  "references": [
    {
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html",
      "source": "security@android.com",
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}