gsd-2014-5045
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.
Aliases
Aliases
CVE-2014-5045


To clipboard 

{
  "GSD": {
    "alias": "CVE-2014-5045",
    "description": "The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.",
    "id": "GSD-2014-5045",
    "references": [
      "https://www.suse.com/security/cve/CVE-2014-5045.html",
      "https://access.redhat.com/errata/RHSA-2015:0062",
      "https://access.redhat.com/errata/RHSA-2014:1971",
      "https://access.redhat.com/errata/RHSA-2014:1392",
      "https://ubuntu.com/security/CVE-2014-5045",
      "https://advisories.mageia.org/CVE-2014-5045.html",
      "https://linux.oracle.com/cve/CVE-2014-5045.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2014-5045"
      ],
      "details": "The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.",
      "id": "GSD-2014-5045",
      "modified": "2023-12-13T01:22:52.604603Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2014-5045",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
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                          "version_value": "n/a"
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          }
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      },
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        "reference_data": [
          {
            "name": "[oss-security] 20140723 Re: CVE request: kernel: vfs: refcount issues during unmount on symlink",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2014/07/24/2"
          },
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            "url": "http://rhn.redhat.com/errata/RHSA-2015-0062.html"
          },
          {
            "name": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8",
            "refsource": "CONFIRM",
            "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8"
          },
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          },
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          },
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            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1122472"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.15.8",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_eus:6.5:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_tus:6.5:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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            ],
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        ]
      },
      "cve": {
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        "description": {
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              "value": "The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-59"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[oss-security] 20140723 Re: CVE request: kernel: vfs: refcount issues during unmount on symlink",
              "refsource": "MLIST",
              "tags": [
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              "url": "http://www.openwall.com/lists/oss-security/2014/07/24/2"
            },
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              "tags": [
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              "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=295dc39d941dc2ae53d5c170365af4c9d5c16212"
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1122472"
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              "name": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8",
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            {
              "name": "68862",
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              "tags": [
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              ],
              "url": "http://www.securityfocus.com/bid/68862"
            },
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              "name": "60353",
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              ],
              "url": "http://secunia.com/advisories/60353"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 1.9,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2020-08-14T18:11Z",
      "publishedDate": "2014-08-01T11:13Z"
    }
  }
}


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