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FKIE_CVE-2017-18270

Vulnerability from fkie_nvd - Published: 2018-05-18 16:29 - Updated: 2026-06-17 01:12
Summary
In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.
References
cve@mitre.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=237bbd29f7a049d310d907f4b2716a7feef9abf3Patch
cve@mitre.orghttp://www.securityfocus.com/bid/104254Third Party Advisory, VDB Entry
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1580979
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1856774#c11
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1856774#c9
cve@mitre.orghttps://github.com/torvalds/linux/commit/237bbd29f7a049d310d907f4b2716a7feef9abf3Patch
cve@mitre.orghttps://support.f5.com/csp/article/K37301725
cve@mitre.orghttps://usn.ubuntu.com/3754-1/
cve@mitre.orghttps://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5Release Notes
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=237bbd29f7a049d310d907f4b2716a7feef9abf3Patch
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/104254Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1580979
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1856774#c11
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1856774#c9
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/237bbd29f7a049d310d907f4b2716a7feef9abf3Patch
af854a3a-2127-422b-91ae-364da2661108https://support.f5.com/csp/article/K37301725
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3754-1/
af854a3a-2127-422b-91ae-364da2661108https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5Release Notes
Impacted products
Vendor Product Version
linux linux_kernel *

{
  "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:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "72E6ACD1-0BF7-4E96-9C91-280176AA3A4E",
              "versionEndExcluding": "4.13.5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, en versiones anteriores a la 4.13.5, un usuario local podr\u00eda crear keyrings para otros usuarios mediante comandos keyctl, estableciendo configuraciones por defecto no deseadas o provocando una denegaci\u00f3n de servicio (DoS)."
    }
  ],
  "id": "CVE-2017-18270",
  "lastModified": "2026-06-17T01:12:31.167",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 3.6,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-05-18T16:29:00.307",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ],
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=237bbd29f7a049d310d907f4b2716a7feef9abf3"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/104254"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1580979"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1856774#c11"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1856774#c9"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/torvalds/linux/commit/237bbd29f7a049d310d907f4b2716a7feef9abf3"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://support.f5.com/csp/article/K37301725"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/3754-1/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ],
      "url": "https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=237bbd29f7a049d310d907f4b2716a7feef9abf3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/104254"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1580979"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1856774#c11"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1856774#c9"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/torvalds/linux/commit/237bbd29f7a049d310d907f4b2716a7feef9abf3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://support.f5.com/csp/article/K37301725"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://usn.ubuntu.com/3754-1/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ],
      "url": "https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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