{
  "id": "CVE-2017-18200",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2018-02-26T03:29:00.227",
  "lastModified": "2018-03-16T17:24:15.580",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The f2fs implementation in the Linux kernel before 4.14 mishandles reference counts associated with f2fs_wait_discard_bios calls, which allows local users to cause a denial of service (BUG), as demonstrated by fstrim."
    },
    {
      "lang": "es",
      "value": "La implementaci\u00f3n f2fs en el kernel de Linux, en versiones anteriores a la 4.14, gestiona err\u00f3neamente las cuentas asociadas a las llamadas f2fs_wait_discard_bios. Esto permite que usuarios locales provoquen una denegaci\u00f3n de servicio (bug), tal y como demuestra fstrim."
    }
  ],
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        "type": "Primary",
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          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
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    ],
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          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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          "baseScore": 4.9
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
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        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
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  "references": [
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=638164a2718f337ea224b747cf5977ef143166a4",
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}