FKIE_CVE-2014-1895

Vulnerability from fkie_nvd - Published: 2014-04-01 06:35 - Updated: 2026-06-17 00:05
Severity
Summary
Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
cve@mitre.orghttp://security.gentoo.org/glsa/glsa-201407-03.xml
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2014/02/07/12
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2014/02/10/6
cve@mitre.orghttp://xenbits.xen.org/xsa/advisory-85.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
af854a3a-2127-422b-91ae-364da2661108http://security.gentoo.org/glsa/glsa-201407-03.xml
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2014/02/07/12
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2014/02/10/6
af854a3a-2127-422b-91ae-364da2661108http://xenbits.xen.org/xsa/advisory-85.htmlPatch, Vendor Advisory
Impacted products
Vendor Product Version
xen xen 4.2.0
xen xen 4.2.1
xen xen 4.2.2
xen xen 4.2.3
xen xen 4.3.0
xen xen 4.3.1
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{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "8F0AF8EF-6FF6-4E22-B16E-82C9F90C6B00",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "47640819-FC43-49ED-8A77-728C3D7255B3",
              "vulnerable": true
            },
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              "matchCriteriaId": "2448537F-87AD-45C1-9FB0-7A49CA31BD76",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "E36B2265-70E1-413B-A7CF-79D39E9ADCFB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "BF948E6A-07BE-4C7D-8A98-002E89D35F4D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "C0E23B94-1726-4F63-84BB-8D83FAB156D7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read."
    },
    {
      "lang": "es",
      "value": "Error de superaci\u00f3n de l\u00edmite (off-by-one) en la funci\u00f3n flask_security_avc_cachestats en xsm/flask/flask_op.c en Xen 4.2.x y 4.3.x, cuando el n\u00famero m\u00e1ximo de CPUs f\u00edsicas est\u00e1n en uso, permite a usuarios locales causar una denegaci\u00f3n de servicio (ca\u00edda de host) u obtener informaci\u00f3n sensible de memoria del hipervisor mediante el aprovechamiento de una hiperllamada FLASK_AVC_CACHESTAT, lo que provoca una sobrelectura de buffer."
    }
  ],
  "id": "CVE-2014-1895",
  "lastModified": "2026-06-17T00:05:42.990",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:A/AC:M/Au:S/C:P/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 4.4,
        "impactScore": 7.8,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2014-04-01T06:35:53.577",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://security.gentoo.org/glsa/glsa-201407-03.xml"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.openwall.com/lists/oss-security/2014/02/07/12"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.openwall.com/lists/oss-security/2014/02/10/6"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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        "Vendor Advisory"
      ],
      "url": "http://xenbits.xen.org/xsa/advisory-85.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://security.gentoo.org/glsa/glsa-201407-03.xml"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2014/02/07/12"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2014/02/10/6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Vendor Advisory"
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      "url": "http://xenbits.xen.org/xsa/advisory-85.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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