gsd-2016-9386
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2016-9386",
    "description": "The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving \"unexpected\" base/limit values.",
    "id": "GSD-2016-9386",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-9386.html",
      "https://www.debian.org/security/2016/dsa-3729",
      "https://advisories.mageia.org/CVE-2016-9386.html",
      "https://linux.oracle.com/cve/CVE-2016-9386.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-9386"
      ],
      "details": "The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving \"unexpected\" base/limit values.",
      "id": "GSD-2016-9386",
      "modified": "2023-12-13T01:21:21.533666Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2016-9386",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
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          }
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      },
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      },
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          {
            "name": "94471",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/94471"
          },
          {
            "name": "GLSA-201612-56",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/201612-56"
          },
          {
            "name": "https://support.citrix.com/article/CTX218775",
            "refsource": "CONFIRM",
            "url": "https://support.citrix.com/article/CTX218775"
          },
          {
            "name": "http://xenbits.xen.org/xsa/advisory-191.html",
            "refsource": "CONFIRM",
            "url": "http://xenbits.xen.org/xsa/advisory-191.html"
          },
          {
            "name": "1037340",
            "refsource": "SECTRACK",
            "url": "http://www.securitytracker.com/id/1037340"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:citrix:xenserver:6.2.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:citrix:xenserver:6.5:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2016-9386"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
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              "value": "The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving \"unexpected\" base/limit values."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-264"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support.citrix.com/article/CTX218775",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://support.citrix.com/article/CTX218775"
            },
            {
              "name": "http://xenbits.xen.org/xsa/advisory-191.html",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
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              ],
              "url": "http://xenbits.xen.org/xsa/advisory-191.html"
            },
            {
              "name": "1037340",
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              "url": "http://www.securitytracker.com/id/1037340"
            },
            {
              "name": "94471",
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              "tags": [
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              "url": "http://www.securityfocus.com/bid/94471"
            },
            {
              "name": "GLSA-201612-56",
              "refsource": "GENTOO",
              "tags": [],
              "url": "https://security.gentoo.org/glsa/201612-56"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.6,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2017-07-01T01:30Z",
      "publishedDate": "2017-01-23T21:59Z"
    }
  }
}


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