{
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  "descriptions": [
    {
      "lang": "en",
      "value": "A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado un problema de bloqueo en el dispositivo controlador AHCI de QEMU. Es producido en un reinicio de software (ahci_reset_port) mientras es manejado un paquete FIS (Frame Information Structure) de registro de host a dispositivo desde el hu\u00e9sped. Un usuario privilegiado dentro del hu\u00e9sped podr\u00eda usar este fallo para colgar el proceso de QEMU en el host, resultando en una condici\u00f3n de denegaci\u00f3n de servicio. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema."
    }
  ],
  "id": "CVE-2021-3735",
  "lastModified": "2025-02-28T13:15:25.767",
  "metrics": {
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "source": "nvd@nist.gov",
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  "published": "2022-08-26T16:15:09.467",
  "references": [
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      "source": "secalert@redhat.com",
      "tags": [
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      "url": "https://access.redhat.com/security/cve/CVE-2021-3735"
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      "tags": [
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        "Third Party Advisory"
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1997184"
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      "url": "https://security.netapp.com/advisory/ntap-20250228-0009/"
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  "vulnStatus": "Modified",
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      ],
      "source": "nvd@nist.gov",
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}