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CVE-2022-0171

Estado: ModificadaMedia (5.5)—

Se ha encontrado un fallo en el kernel de Linux. La API existente de KVM SEV presenta una vulnerabilidad que permite que una aplicación a nivel de usuario no root (anfitrión) bloquee el kernel del anfitrión al crear una instancia de VM de invitado confidencial en la CPU de AMD que admite la virtualización cifrada segura (SEV).

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 LinuxLinux — Linux KernelRedhat — Enterprise Linux

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2022-0171",
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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "versions": [
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              "version": "Fixed in kernel 5.18-rc4"
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  "published": "2022-08-26T18:15:08.603",
  "references": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "secalert@redhat.com",
      "description": [
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          "value": "CWE-459"
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-212"
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  "descriptions": [
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      "lang": "en",
      "value": "A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV)."
    },
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    }
  ],
  "lastModified": "2026-06-17T04:20:05.553",
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