CVE-2014-7975 (GCVE-0-2014-7975)

Vulnerability from cvelistv5 – Published: 2014-10-13 10:00 – Updated: 2024-08-06 13:03
VLAI?
Summary
The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
http://www.ubuntu.com/usn/USN-2418-1 vendor-advisoryx_refsource_UBUNTU
http://secunia.com/advisories/61145 third-party-advisoryx_refsource_SECUNIA
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://www.ubuntu.com/usn/USN-2416-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2417-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2415-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2419-1 vendor-advisoryx_refsource_UBUNTU
http://git.kernel.org/cgit/linux/kernel/git/torva… x_refsource_CONFIRM
http://www.securitytracker.com/id/1031180 vdb-entryx_refsource_SECTRACK
http://secunia.com/advisories/60174 third-party-advisoryx_refsource_SECUNIA
http://www.ubuntu.com/usn/USN-2421-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2420-1 vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2017:2077 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:1842 vendor-advisoryx_refsource_REDHAT
http://secunia.com/advisories/62633 third-party-advisoryx_refsource_SECUNIA
http://www.openwall.com/lists/oss-security/2014/1… mailing-listx_refsource_MLIST
http://secunia.com/advisories/62634 third-party-advisoryx_refsource_SECUNIA
http://thread.gmane.org/gmane.linux.kernel.stable… mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/70314 vdb-entryx_refsource_BID
https://bugzilla.redhat.com/show_bug.cgi?id=1151108 x_refsource_CONFIRM
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T13:03:27.690Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "USN-2418-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2418-1"
          },
          {
            "name": "61145",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/61145"
          },
          {
            "name": "linux-kernel-cve20147975-dos(96994)",
            "tags": [
              "vdb-entry",
              "x_refsource_XF",
              "x_transferred"
            ],
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/96994"
          },
          {
            "name": "USN-2416-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2416-1"
          },
          {
            "name": "USN-2417-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2417-1"
          },
          {
            "name": "USN-2415-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2415-1"
          },
          {
            "name": "USN-2419-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2419-1"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5"
          },
          {
            "name": "1031180",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1031180"
          },
          {
            "name": "60174",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/60174"
          },
          {
            "name": "USN-2421-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2421-1"
          },
          {
            "name": "USN-2420-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2420-1"
          },
          {
            "name": "RHSA-2017:2077",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2017:2077"
          },
          {
            "name": "RHSA-2017:1842",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2017:1842"
          },
          {
            "name": "62633",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/62633"
          },
          {
            "name": "[oss-security] 20141008 CVE-2014-7975: 0-day umount denial of service",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2014/10/08/22"
          },
          {
            "name": "62634",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/62634"
          },
          {
            "name": "[stable] 20141008 [PATCH] fs: Add a missing permission check to do_umount",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://thread.gmane.org/gmane.linux.kernel.stable/109312"
          },
          {
            "name": "70314",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/70314"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1151108"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2014-10-08T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-01-04T19:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "USN-2418-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2418-1"
        },
        {
          "name": "61145",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/61145"
        },
        {
          "name": "linux-kernel-cve20147975-dos(96994)",
          "tags": [
            "vdb-entry",
            "x_refsource_XF"
          ],
          "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/96994"
        },
        {
          "name": "USN-2416-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2416-1"
        },
        {
          "name": "USN-2417-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2417-1"
        },
        {
          "name": "USN-2415-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2415-1"
        },
        {
          "name": "USN-2419-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2419-1"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5"
        },
        {
          "name": "1031180",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1031180"
        },
        {
          "name": "60174",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/60174"
        },
        {
          "name": "USN-2421-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2421-1"
        },
        {
          "name": "USN-2420-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2420-1"
        },
        {
          "name": "RHSA-2017:2077",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2017:2077"
        },
        {
          "name": "RHSA-2017:1842",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2017:1842"
        },
        {
          "name": "62633",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/62633"
        },
        {
          "name": "[oss-security] 20141008 CVE-2014-7975: 0-day umount denial of service",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2014/10/08/22"
        },
        {
          "name": "62634",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/62634"
        },
        {
          "name": "[stable] 20141008 [PATCH] fs: Add a missing permission check to do_umount",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://thread.gmane.org/gmane.linux.kernel.stable/109312"
        },
        {
          "name": "70314",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/70314"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1151108"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2014-7975",
          "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": "The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "USN-2418-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2418-1"
            },
            {
              "name": "61145",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/61145"
            },
            {
              "name": "linux-kernel-cve20147975-dos(96994)",
              "refsource": "XF",
              "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/96994"
            },
            {
              "name": "USN-2416-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2416-1"
            },
            {
              "name": "USN-2417-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2417-1"
            },
            {
              "name": "USN-2415-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2415-1"
            },
            {
              "name": "USN-2419-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2419-1"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5",
              "refsource": "CONFIRM",
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5"
            },
            {
              "name": "1031180",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1031180"
            },
            {
              "name": "60174",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/60174"
            },
            {
              "name": "USN-2421-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2421-1"
            },
            {
              "name": "USN-2420-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2420-1"
            },
            {
              "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"
            },
            {
              "name": "62633",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/62633"
            },
            {
              "name": "[oss-security] 20141008 CVE-2014-7975: 0-day umount denial of service",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2014/10/08/22"
            },
            {
              "name": "62634",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/62634"
            },
            {
              "name": "[stable] 20141008 [PATCH] fs: Add a missing permission check to do_umount",
              "refsource": "MLIST",
              "url": "http://thread.gmane.org/gmane.linux.kernel.stable/109312"
            },
            {
              "name": "70314",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/70314"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1151108",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1151108"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2014-7975",
    "datePublished": "2014-10-13T10:00:00.000Z",
    "dateReserved": "2014-10-08T00:00:00.000Z",
    "dateUpdated": "2024-08-06T13:03:27.690Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.