FKIE_CVE-2018-17977

Vulnerability from fkie_nvd - Published: 2018-10-08 17:29 - Updated: 2026-06-17 01:46
Severity
4.4 (Medium) - CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Summary
The Linux kernel 4.14.67 mishandles certain interaction among XFRM Netlink messages, IPPROTO_AH packets, and IPPROTO_IP packets, which allows local users to cause a denial of service (memory consumption and system hang) by leveraging root access to execute crafted applications, as demonstrated on CentOS 7.
References
cve@mitre.orghttp://www.securityfocus.com/bid/105539Third Party Advisory, VDB Entry
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2018/10/05/5Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/105539Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2018/10/05/5Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel 4.14.67
To clipboard 

{
  "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:4.14.67:*:*:*:*:*:*:*",
              "matchCriteriaId": "13AB2E72-31EC-4AF8-AF5A-C724AE3BB2EC",
              "vulnerable": true
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          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Linux kernel 4.14.67 mishandles certain interaction among XFRM Netlink messages, IPPROTO_AH packets, and IPPROTO_IP packets, which allows local users to cause a denial of service (memory consumption and system hang) by leveraging root access to execute crafted applications, as demonstrated on CentOS 7."
    },
    {
      "lang": "es",
      "value": "El kernel de Linux en su versi\u00f3n 4.14.67 gestiona incorrectamente ciertas interacciones entre los mensajes XFRM Netlink, los paquetes IPPROTO_AH y los paquetes IPPROTO_IP, lo que permite que los usuarios locales provoquen una denegaci\u00f3n de servicio (consumo de memoria y bloqueo del sistema) aprovechando el acceso root para ejecutar aplicaciones manipuladas, tal y como queda demostrado en CentOS 7."
    }
  ],
  "id": "CVE-2018-17977",
  "lastModified": "2026-06-17T01:46:38.320",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 4.9,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
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    ],
    "cvssMetricV30": [
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
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        "exploitabilityScore": 0.8,
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        "source": "nvd@nist.gov",
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  "published": "2018-10-08T17:29:00.653",
  "references": [
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      "tags": [
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        "VDB Entry"
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        "Third Party Advisory"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
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        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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