CVE-2016-3961 (GCVE-0-2016-3961)

Vulnerability from cvelistv5 – Published: 2016-04-15 14:00 – Updated: 2024-08-06 00:10
VLAI
Summary
Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area.
Severity
5.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
http://xenbits.xen.org/xsa/xsa174.patch x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-3006-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3004-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3001-1 vendor-advisoryx_refsource_UBUNTU
http://xenbits.xen.org/xsa/advisory-174.html x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-3005-1 vendor-advisoryx_refsource_UBUNTU
http://www.securitytracker.com/id/1035569 vdb-entryx_refsource_SECTRACK
http://www.ubuntu.com/usn/USN-3049-1 vendor-advisoryx_refsource_UBUNTU
http://www.debian.org/security/2016/dsa-3607 vendor-advisoryx_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-3002-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3050-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3007-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3003-1 vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/86068 vdb-entryx_refsource_BID
Date Public
2016-04-14 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T00:10:31.962Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://xenbits.xen.org/xsa/xsa174.patch"
          },
          {
            "name": "USN-3006-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3006-1"
          },
          {
            "name": "USN-3004-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3004-1"
          },
          {
            "name": "USN-3001-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3001-1"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://xenbits.xen.org/xsa/advisory-174.html"
          },
          {
            "name": "USN-3005-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3005-1"
          },
          {
            "name": "1035569",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1035569"
          },
          {
            "name": "USN-3049-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3049-1"
          },
          {
            "name": "DSA-3607",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2016/dsa-3607"
          },
          {
            "name": "USN-3002-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3002-1"
          },
          {
            "name": "USN-3050-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3050-1"
          },
          {
            "name": "USN-3007-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3007-1"
          },
          {
            "name": "USN-3003-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3003-1"
          },
          {
            "name": "86068",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/86068"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-04-14T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2016-11-25T20:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://xenbits.xen.org/xsa/xsa174.patch"
        },
        {
          "name": "USN-3006-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3006-1"
        },
        {
          "name": "USN-3004-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3004-1"
        },
        {
          "name": "USN-3001-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3001-1"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://xenbits.xen.org/xsa/advisory-174.html"
        },
        {
          "name": "USN-3005-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3005-1"
        },
        {
          "name": "1035569",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1035569"
        },
        {
          "name": "USN-3049-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3049-1"
        },
        {
          "name": "DSA-3607",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2016/dsa-3607"
        },
        {
          "name": "USN-3002-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3002-1"
        },
        {
          "name": "USN-3050-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3050-1"
        },
        {
          "name": "USN-3007-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3007-1"
        },
        {
          "name": "USN-3003-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3003-1"
        },
        {
          "name": "86068",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/86068"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2016-3961",
          "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": [
            {
              "lang": "eng",
              "value": "Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://xenbits.xen.org/xsa/xsa174.patch",
              "refsource": "CONFIRM",
              "url": "http://xenbits.xen.org/xsa/xsa174.patch"
            },
            {
              "name": "USN-3006-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3006-1"
            },
            {
              "name": "USN-3004-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3004-1"
            },
            {
              "name": "USN-3001-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3001-1"
            },
            {
              "name": "http://xenbits.xen.org/xsa/advisory-174.html",
              "refsource": "CONFIRM",
              "url": "http://xenbits.xen.org/xsa/advisory-174.html"
            },
            {
              "name": "USN-3005-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3005-1"
            },
            {
              "name": "1035569",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1035569"
            },
            {
              "name": "USN-3049-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3049-1"
            },
            {
              "name": "DSA-3607",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2016/dsa-3607"
            },
            {
              "name": "USN-3002-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3002-1"
            },
            {
              "name": "USN-3050-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3050-1"
            },
            {
              "name": "USN-3007-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3007-1"
            },
            {
              "name": "USN-3003-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3003-1"
            },
            {
              "name": "86068",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/86068"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2016-3961",
    "datePublished": "2016-04-15T14:00:00.000Z",
    "dateReserved": "2016-04-05T00:00:00.000Z",
    "dateUpdated": "2024-08-06T00:10:31.962Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2016-3961",
      "date": "2026-10-02",
      "epss": "0.0051",
      "percentile": "0.41356"
    },
    "nvd": {
      "cve": {
        "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:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                    "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E88A537F-F4D0-46B9-9E37-965233C2A355",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                    "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DA1EE117-3EC6-4829-9431-F90E83C0DA58",
                    "versionEndIncluding": "4.5.3",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area."
          },
          {
            "lang": "es",
            "value": "Xen y el kernel de Linux hasta la versi\u00f3n 4.5.x no suprime adecuadamente el apoyo hugetlbfs en invitados x86 PV, lo que permite a usuarios PV locales invitados del SO provocar una denegaci\u00f3n de servicio (caida de SO invitado) al intentar acceder a un \u00e1rea mapeada hugetlbfs."
          }
        ],
        "id": "CVE-2016-3961",
        "lastModified": "2026-06-17T00:46:38.807",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 2.1,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-04-15T14:59:14.050",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://www.debian.org/security/2016/dsa-3607"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/bid/86068"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1035569"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3001-1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3002-1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3003-1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3004-1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3005-1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3006-1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3007-1"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.ubuntu.com/usn/USN-3049-1"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.ubuntu.com/usn/USN-3050-1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://xenbits.xen.org/xsa/advisory-174.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch"
            ],
            "url": "http://xenbits.xen.org/xsa/xsa174.patch"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.debian.org/security/2016/dsa-3607"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/86068"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1035569"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3001-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3002-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3003-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3004-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3005-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3006-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3007-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-3049-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-3050-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://xenbits.xen.org/xsa/advisory-174.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "http://xenbits.xen.org/xsa/xsa174.patch"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:07:28+00:00",
      "cve": "CVE-2016-3961",
      "id": "CVE-2016-3961",
      "initial_release_date": "2016-04-14T00:00:00+00:00",
      "product_status:known_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "xen: hugetlbfs use may crash PV Linux guests (XSA-174)",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-3961.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.