gsd-2016-6213
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.
Aliases
Aliases
CVE-2016-6213


To clipboard 

{
  "GSD": {
    "alias": "CVE-2016-6213",
    "description": "fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.",
    "id": "GSD-2016-6213",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-6213.html",
      "https://access.redhat.com/errata/RHSA-2017:2077",
      "https://access.redhat.com/errata/RHSA-2017:1842",
      "https://ubuntu.com/security/CVE-2016-6213",
      "https://advisories.mageia.org/CVE-2016-6213.html",
      "https://linux.oracle.com/cve/CVE-2016-6213.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-6213"
      ],
      "details": "fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.",
      "id": "GSD-2016-6213",
      "modified": "2023-12-13T01:21:23.402056Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2016-6213",
        "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": "fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "[oss-security] 20160713 Re: cve request: local DoS by overflowing kernel mount table using shared bind mount",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2016/07/13/8"
          },
          {
            "name": "https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498",
            "refsource": "CONFIRM",
            "url": "https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498"
          },
          {
            "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498",
            "refsource": "CONFIRM",
            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498"
          },
          {
            "name": "91754",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/91754"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1356471",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1356471"
          },
          {
            "name": "RHSA-2017:2077",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2017:2077"
          },
          {
            "name": "RHSA-2017:1842",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2017:1842"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.8.15",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2016-6213"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-400"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498",
              "refsource": "CONFIRM",
              "tags": [
                "Patch"
              ],
              "url": "https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1356471",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1356471"
            },
            {
              "name": "[oss-security] 20160713 Re: cve request: local DoS by overflowing kernel mount table using shared bind mount",
              "refsource": "MLIST",
              "tags": [
                "Mailing List"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2016/07/13/8"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498"
            },
            {
              "name": "91754",
              "refsource": "BID",
              "tags": [],
              "url": "http://www.securityfocus.com/bid/91754"
            },
            {
              "name": "RHSA-2017:2077",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2017:2077"
            },
            {
              "name": "RHSA-2017:1842",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2017:1842"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 4.7,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 1.0,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2018-01-05T02:31Z",
      "publishedDate": "2016-12-28T07:59Z"
    }
  }
}


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