FKIE_CVE-2017-18224

Vulnerability from fkie_nvd - Published: 2018-03-12 03:29 - Updated: 2024-11-21 03:19
Severity ?
4.7 (Medium) - CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
References
cve@mitre.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917fPatch, Vendor Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/103353Third Party Advisory, VDB Entry
cve@mitre.orghttps://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917fPatch, Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2018/dsa-4188
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917fPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/103353Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917fPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4188
Impacted products
Vendor Product Version
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A4344060-7D43-4A74-A2EF-DE9A6F8457A6",
              "versionEndExcluding": "4.15",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, en versiones anteriores a la 4.15, fs/ocfs2/aops.c omite el uso de un sem\u00e1foro y, por consiguiente, tiene una condici\u00f3n de carrera al acceder al \u00e1rbol extent durante las operaciones de lectura en modo DIRECT. Esto permite que usuarios locales provoquen una denegaci\u00f3n de servicio (bug) modificando cierto campo e_cpos."
    }
  ],
  "id": "CVE-2017-18224",
  "lastModified": "2024-11-21T03:19:36.803",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 1.9,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.0,
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  "published": "2018-03-12T03:29:00.260",
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      "tags": [
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
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      "url": "https://www.debian.org/security/2018/dsa-4188"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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