fkie_cve-2015-7835
Vulnerability from fkie_nvd
Published
2015-10-30 15:59
Modified
2025-04-12 10:46
Severity ?
Summary
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.
References
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
cve@mitre.orghttp://support.citrix.com/article/CTX202404
cve@mitre.orghttp://www.debian.org/security/2015/dsa-3390
cve@mitre.orghttp://www.securityfocus.com/bid/77366
cve@mitre.orghttp://www.securitytracker.com/id/1034032
cve@mitre.orghttp://xenbits.xen.org/xsa/advisory-148.htmlVendor Advisory
cve@mitre.orghttps://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txtVendor Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/201604-03
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
af854a3a-2127-422b-91ae-364da2661108http://support.citrix.com/article/CTX202404
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2015/dsa-3390
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/77366
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1034032
af854a3a-2127-422b-91ae-364da2661108http://xenbits.xen.org/xsa/advisory-148.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201604-03
Impacted products
Vendor Product Version
xen xen 3.4.0
xen xen 3.4.1
xen xen 3.4.2
xen xen 3.4.3
xen xen 3.4.4
xen xen 4.0.0
xen xen 4.0.1
xen xen 4.0.2
xen xen 4.0.3
xen xen 4.0.4
xen xen 4.1.0
xen xen 4.1.1
xen xen 4.1.2
xen xen 4.1.3
xen xen 4.1.4
xen xen 4.1.5
xen xen 4.1.6.1
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
xen xen 4.3.2
xen xen 4.3.4
xen xen 4.4.0
xen xen 4.4.1
xen xen 4.5.0
xen xen 4.5.1
xen xen 4.6.0



{
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              "matchCriteriaId": "B7C1D0AD-B804-474C-96A3-988BADA0DAD2",
              "vulnerable": true
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          "negate": false,
          "operator": "OR"
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n mod_l2_entry en arch/x86/mm.c en Xen 3.4 hasta la versi\u00f3n 4.6.x no valida correctamente las entradas de la tabla de paginaci\u00f3n de nivel 2, lo que permite a administradores invitados PV locales obtener privilegios a trav\u00e9s de un mapeo de superpage manipulado."
    }
  ],
  "id": "CVE-2015-7835",
  "lastModified": "2025-04-12T10:46:40.837",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2015-10-30T15:59:04.747",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://support.citrix.com/article/CTX202404"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.debian.org/security/2015/dsa-3390"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/77366"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securitytracker.com/id/1034032"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://xenbits.xen.org/xsa/advisory-148.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://security.gentoo.org/glsa/201604-03"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://support.citrix.com/article/CTX202404"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2015/dsa-3390"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/77366"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id/1034032"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://xenbits.xen.org/xsa/advisory-148.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://security.gentoo.org/glsa/201604-03"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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