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CVE-2014-9066

Estado: ModificadaMedia (4.7)—

Xen 4.4.x y versiones anteriores, cuando utiliza un gran número de VCPUs, no maneja adecuadamente los bloqueos de lectura y escritura, lo que permite a usuarios invitados x86 locales causar una denegación de servicio (denegación de escritura o tiempo de espera agotado del watchdog NMI y caida de host) a través de un gran número de peticiones de lectura, una vulnerabilidad diferente a CVE-2014-9065.

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)

Opensuse — OpensuseXEN — XEN

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2014-9066",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.7,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2014-12-09T23:59:09.193",
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2014/12/08/4",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/71546",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://xenbits.xen.org/xsa/advisory-114.html",
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    },
    {
      "url": "https://security.gentoo.org/glsa/201504-04",
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      "url": "https://security.gentoo.org/glsa/201504-04",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-17"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065."
    },
    {
      "lang": "es",
      "value": "Xen 4.4.x y versiones anteriores, cuando utiliza un gran número de VCPUs, no maneja adecuadamente los bloqueos de lectura y escritura, lo que permite a usuarios invitados x86 locales causar una denegación de servicio (denegación de escritura o tiempo de espera agotado del watchdog NMI y caida de host) a través de un gran número de peticiones de lectura, una vulnerabilidad diferente a CVE-2014-9065."
    }
  ],
  "lastModified": "2026-06-17T00:17:44.407",
  "configurations": [
    {
      "nodes": [
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              "versionEndIncluding": "4.4.1"
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}