{
  "id": "CVE-2017-10921",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2017-07-05T01:29:00.860",
  "lastModified": "2024-11-21T03:06:45.440",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 2."
    },
    {
      "lang": "es",
      "value": "La caracter\u00edstica de tabla grant en Xen, hasta las versiones 4.8.x, no asegura que se realicen los conteos de tipos suficientes para un mapeo de GNTMAP_device_map y GNTMAP_host_map, lo que permite que los usuarios invitados del sistema operativo provoquen una denegaci\u00f3n de servicio (mala gesti\u00f3n del conteo y corrupci\u00f3n de memoria) u obtengan privilegios de acceso al sistema operativo anfitri\u00f3n. Esto tambi\u00e9n se conoce como XSA-224, fallo 2."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.0
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "baseScore": 10.0,
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "availabilityImpact": "COMPLETE"
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "4.8.1",
              "matchCriteriaId": "7494A471-EEFC-44F4-96B1-FDBA3B780313"
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  ],
  "references": [
    {
      "url": "http://www.debian.org/security/2017/dsa-3969",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1038734",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201708-03",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201710-17",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://xenbits.xen.org/xsa/advisory-224.html",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.debian.org/security/2017/dsa-3969",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1038734",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201708-03",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201710-17",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://xenbits.xen.org/xsa/advisory-224.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
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  ]
}