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CVE-2023-52931

Estado: AnalizadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

drm/i915: Avoid potential vm use-after-free

Adding the vm to the vm_xa table makes it visible to userspace, which could try to race with us to close the vm. So we need to take our extra reference before putting it in the table.

(cherry picked from commit 99343c46d4e2b34c285d3d5f68ff04274c2f9fb4)

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso local (AV:L) con privilegios (PR:L) sin interacción permite escalada mediante use-after-free en el kernel de Linux (CWE-416). La ejecución de código arbitrario en contexto del kernel es la consecuencia directa.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationBehavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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              "technicalImpact": "total"
            }
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          "version": "2.0.3",
          "timestamp": "2025-03-28T15:22:44.463272Z"
        }
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
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          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Avoid potential vm use-after-free\n\nAdding the vm to the vm_xa table makes it visible to userspace, which\ncould try to race with us to close the vm.  So we need to take our extra\nreference before putting it in the table.\n\n(cherry picked from commit 99343c46d4e2b34c285d3d5f68ff04274c2f9fb4)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/i915: Evite el posible use-after-free de la máquina virtual. Añada la máquina virtual a vm_xa la hace visible para el espacio de usuario, lo que podría intentar cerrarla rápidamente. Por lo tanto, debemos tomar nuestra referencia adicional antes de añadirla a la tabla. (Seleccionado del commit 99343c46d4e2b34c285d3d5f68ff04274c2f9fb4)"
    }
  ],
  "lastModified": "2026-06-17T06:43:57.657",
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