FKIE_CVE-2012-3516

Vulnerability from fkie_nvd - Published: 2012-11-23 20:55 - Updated: 2026-06-16 23:43
Severity
Summary
The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.
References
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html
secalert@redhat.comhttp://secunia.com/advisories/50472Vendor Advisory
secalert@redhat.comhttp://secunia.com/advisories/50530Vendor Advisory
secalert@redhat.comhttp://support.citrix.com/article/CTX134708Patch, Vendor Advisory
secalert@redhat.comhttp://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2012/09/05/11
secalert@redhat.comhttp://www.securityfocus.com/bid/55411
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/50472Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/50530Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://support.citrix.com/article/CTX134708Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/09/05/11
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/55411
Impacted products
Vendor Product Version
citrix xenserver *
xen xen 4.2.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "24FCA867-7158-459C-9D6C-75A39263F00A",
              "versionEndIncluding": "6.0.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "8F0AF8EF-6FF6-4E22-B16E-82C9F90C6B00",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location."
    },
    {
      "lang": "es",
      "value": "La sub-operaci\u00f3n GNTTABOP_swap_grant_ref  en el \"grant table hypercall\" en Xen v4.2 y Citrix XenServer v6.0.2 permite a los kernels locales de invitado o administradores causar una denegaci\u00f3n de servicio (ca\u00edda del host) y, posiblemente, obtener privilegios a trav\u00e9s de una referencia manipulada que genera una escritura en una ubicaci\u00f3n en memoria del hipervisor"
    }
  ],
  "id": "CVE-2012-3516",
  "lastModified": "2026-06-16T23:43:23.377",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.9,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2012-11-23T20:55:03.650",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/50472"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/50530"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://support.citrix.com/article/CTX134708"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.openwall.com/lists/oss-security/2012/09/05/11"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.securityfocus.com/bid/55411"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/50472"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/50530"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://support.citrix.com/article/CTX134708"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2012/09/05/11"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/55411"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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