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GSD-2016-6258

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2016-6258",
    "description": "The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.",
    "id": "GSD-2016-6258",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-6258.html",
      "https://www.debian.org/security/2016/dsa-3633",
      "https://advisories.mageia.org/CVE-2016-6258.html",
      "https://linux.oracle.com/cve/CVE-2016-6258.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-6258"
      ],
      "details": "The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.",
      "id": "GSD-2016-6258",
      "modified": "2023-12-13T01:21:23.428992Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2016-6258",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
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            }
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            "value": "The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
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              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
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            "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"
          },
          {
            "name": "http://xenbits.xen.org/xsa/advisory-182.html",
            "refsource": "CONFIRM",
            "url": "http://xenbits.xen.org/xsa/advisory-182.html"
          },
          {
            "name": "http://xenbits.xen.org/xsa/xsa182-4.6.patch",
            "refsource": "CONFIRM",
            "url": "http://xenbits.xen.org/xsa/xsa182-4.6.patch"
          },
          {
            "name": "http://support.citrix.com/article/CTX214954",
            "refsource": "CONFIRM",
            "url": "http://support.citrix.com/article/CTX214954"
          },
          {
            "name": "GLSA-201611-09",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/201611-09"
          },
          {
            "name": "http://xenbits.xen.org/xsa/xsa182-unstable.patch",
            "refsource": "CONFIRM",
            "url": "http://xenbits.xen.org/xsa/xsa182-unstable.patch"
          },
          {
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            "refsource": "CONFIRM",
            "url": "http://xenbits.xen.org/xsa/xsa182-4.5.patch"
          },
          {
            "name": "DSA-3633",
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            "url": "http://www.debian.org/security/2016/dsa-3633"
          },
          {
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            "refsource": "SECTRACK",
            "url": "http://www.securitytracker.com/id/1036446"
          },
          {
            "name": "92131",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/92131"
          }
        ]
      }
    },
    "nvd.nist.gov": {
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            }
          ]
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      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "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": true,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 2.0,
          "impactScore": 6.0
        }
      },
      "lastModifiedDate": "2017-07-01T01:29Z",
      "publishedDate": "2016-08-02T16:59Z"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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