{
  "id": "CVE-2017-18255",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2018-03-31T17:29:00.263",
  "lastModified": "2019-01-19T11:29:00.713",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n perf_cpu_time_max_percent_handler en kernel/events/core.c en el kernel de Linux en versiones anteriores a la 4.11 permite que los usuarios locales provoquen una denegaci\u00f3n de servicio (desbordamiento de enteros) o, posiblemente, otro impacto no especificado mediante un valor de gran tama\u00f1o, tal y como queda demostrado con un c\u00e1lculo incorrecto de la frecuencia de muestreo."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "4.11",
              "matchCriteriaId": "68E74529-58C5-4D73-8176-DDDF25C71F22"
            }
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  ],
  "references": [
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1572e45a924f254d9570093abde46430c3172e3d",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/103607",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/torvalds/linux/commit/1572e45a924f254d9570093abde46430c3172e3d",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://usn.ubuntu.com/3696-1/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://usn.ubuntu.com/3696-2/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://usn.ubuntu.com/3754-1/",
      "source": "cve@mitre.org"
    }
  ]
}