FKIE_CVE-2020-14394

Vulnerability from fkie_nvd - Published: 2022-08-17 21:15 - Updated: 2026-06-17 02:54
Severity
3.2 (Low) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
Summary
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1908004Exploit, Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://gitlab.com/qemu-project/qemu/-/issues/646Exploit, Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2023/03/msg00013.html
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1908004Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/qemu-project/qemu/-/issues/646Exploit, Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
Impacted products
Vendor Product Version
qemu qemu 6.1.50
fedoraproject extra_packages_for_enterprise_linux 7.0
fedoraproject fedora 33
fedoraproject fedora 37
redhat openstack_platform 10.0
redhat openstack_platform 13.0
redhat enterprise_linux 5.0
redhat enterprise_linux 6.0
redhat enterprise_linux 7.0
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "QEMU",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "QEMU 6.1.50"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
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              "vulnerable": true
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado un fallo de bucle infinito en la emulaci\u00f3n del controlador USB xHCI de QEMU mientras es calculada la longitud del anillo de petici\u00f3n de transferencia (TRB). Este fallo permite a un usuario invitado privilegiado colgar el proceso de QEMU en el host, resultando en una denegaci\u00f3n de servicio."
    }
  ],
  "id": "CVE-2020-14394",
  "lastModified": "2026-06-17T02:54:41.353",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 3.2,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.5,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-08-17T21:15:07.913",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
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        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1908004"
    },
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      "tags": [
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    {
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    },
    {
      "description": [
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          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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