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CVE-2022-26357

Estado: ModificadaAlta (7)—

Una carrera en la limpieza del ID de dominio de VT-d Los ID de dominio de Xen presentan hasta 15 bits de ancho. El hardware VT-d puede permitir sólo menos de 15 bits para mantener un ID de dominio que asocie un dispositivo físico con un dominio particular. Por lo tanto, internamente los ID de dominio de Xen son asignados al rango de valores más pequeño. La limpieza de las estructuras de mantenimiento de la casa presenta una carrera, lo que permite que los ID de dominio VT-d sean filtrados y que los flushes sean evitados

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 (3)

Debian — Debian LinuxFedoraproject — FedoraXEN — XEN

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2022-26357",
  "cveTags": [],
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        "source": "nvd@nist.gov",
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          "baseScore": 6.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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  "affected": [
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      "affectedData": [
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          "vendor": "Xen",
          "product": "xen",
          "versions": [
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              "status": "unknown",
              "version": "consult Xen advisory XSA-399"
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  "published": "2022-04-05T13:15:07.777",
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      "description": [
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          "lang": "en",
          "value": "CWE-362"
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  "descriptions": [
    {
      "lang": "en",
      "value": "race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed."
    },
    {
      "lang": "es",
      "value": "Una carrera en la limpieza del ID de dominio de VT-d Los ID de dominio de Xen presentan hasta 15 bits de ancho. El hardware VT-d puede permitir sólo menos de 15 bits para mantener un ID de dominio que asocie un dispositivo físico con un dominio particular. Por lo tanto, internamente los ID de dominio de Xen son asignados al rango de valores más pequeño. La limpieza de las estructuras de mantenimiento de la casa presenta una carrera, lo que permite que los ID de dominio VT-d sean filtrados y que los flushes sean evitados"
    }
  ],
  "lastModified": "2026-06-17T04:35:02.807",
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