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CVE-2022-0216

Estado: ModificadaMedia (4.4)—

A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service.

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 (2)

Fedoraproject — FedoraQemu — Qemu

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2022-0216",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "QEMU",
          "versions": [
            {
              "status": "affected",
              "version": "Affects QEMU < v6.0.0, Fixed in v7.1.0-rc0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-08-26T18:15:08.777",
  "references": [
    {
      "url": "https://access.redhat.com/security/cve/CVE-2022-0216",
      "tags": [
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      ],
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        "Third Party Advisory"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado una vulnerabilidad de uso de memoria previamente liberada en la emulación del adaptador de bus de host LSI53C895A SCSI de QEMU. El fallo es producido mientras son procesados mensajes repetidos para cancelar la petición SCSI actual por medio de la función lsi_do_msgout. Este fallo permite a un usuario privilegiado malicioso dentro del huésped bloquear el proceso de QEMU en el host, resultando en una denegación de servicio."
    }
  ],
  "lastModified": "2026-06-17T04:20:10.187",
  "configurations": [
    {
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  "sourceIdentifier": "secalert@redhat.com"
}