nvd-json-data-feeds/CVE-2022/CVE-2022-487xx/CVE-2022-48771.json

{
  "id": "CVE-2022-48771",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-06-20T12:15:15.043",
  "lastModified": "2025-01-06T21:41:47.617",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Fix stale file descriptors on failed usercopy\n\nA failing usercopy of the fence_rep object will lead to a stale entry in\nthe file descriptor table as put_unused_fd() won't release it. This\nenables userland to refer to a dangling 'file' object through that still\nvalid file descriptor, leading to all kinds of use-after-free\nexploitation scenarios.\n\nFix this by deferring the call to fd_install() until after the usercopy\nhas succeeded."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/vmwgfx: corrige descriptores de archivos obsoletos en una copia de usuario fallida. Una copia de usuario fallida del objeto valla_rep generar\u00e1 una entrada obsoleta en la tabla de descriptores de archivos, ya que put_unused_fd() no lo liberar\u00e1. Esto permite al usuario hacer referencia a un objeto 'archivo' pendiente a trav\u00e9s de ese descriptor de archivo a\u00fan v\u00e1lido, lo que lleva a todo tipo de escenarios de explotaci\u00f3n de use-after-free. Solucione este problema posponiendo la llamada a fd_install() hasta que la copia del usuario se haya realizado correctamente."
    }
  ],
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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",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9
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          "value": "CWE-416"
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