fkie_cve-2017-17449
Vulnerability from fkie_nvd
Published
2017-12-07 00:29
Modified
2025-04-20 01:37
Severity ?
4.7 (Medium) - CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
The __netlink_deliver_tap_skb function in net/netlink/af_netlink.c in the Linux kernel through 4.14.4, when CONFIG_NLMON is enabled, does not restrict observations of Netlink messages to a single net namespace, which allows local users to obtain sensitive information by leveraging the CAP_NET_ADMIN capability to sniff an nlmon interface for all Netlink activity on the system.
References
cve@mitre.orghttp://www.securityfocus.com/bid/102122Third Party Advisory, VDB Entry
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:0654
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:0676
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:1062
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:1130
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:1170
cve@mitre.orghttps://lkml.org/lkml/2017/12/5/950Mailing List, Third Party Advisory
cve@mitre.orghttps://source.android.com/security/bulletin/pixel/2018-04-01
cve@mitre.orghttps://usn.ubuntu.com/3619-1/
cve@mitre.orghttps://usn.ubuntu.com/3619-2/
cve@mitre.orghttps://usn.ubuntu.com/3653-1/
cve@mitre.orghttps://usn.ubuntu.com/3653-2/
cve@mitre.orghttps://usn.ubuntu.com/3655-1/
cve@mitre.orghttps://usn.ubuntu.com/3655-2/
cve@mitre.orghttps://usn.ubuntu.com/3657-1/
cve@mitre.orghttps://www.debian.org/security/2017/dsa-4073
cve@mitre.orghttps://www.debian.org/security/2018/dsa-4082
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102122Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:0654
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:0676
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:1062
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:1130
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:1170
af854a3a-2127-422b-91ae-364da2661108https://lkml.org/lkml/2017/12/5/950Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://source.android.com/security/bulletin/pixel/2018-04-01
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3619-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3619-2/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3653-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3653-2/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3655-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3655-2/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3657-1/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2017/dsa-4073
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4082
Impacted products
Vendor Product Version
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "73A9E8BB-A037-453D-8A98-A22D9B0A0020",
              "versionEndIncluding": "4.14.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The __netlink_deliver_tap_skb function in net/netlink/af_netlink.c in the Linux kernel through 4.14.4, when CONFIG_NLMON is enabled, does not restrict observations of Netlink messages to a single net namespace, which allows local users to obtain sensitive information by leveraging the CAP_NET_ADMIN capability to sniff an nlmon interface for all Netlink activity on the system."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n __netlink_deliver_tap_skb en net/netlink/af_netlink.c en el kernel de Linux hasta la versi\u00f3n 4.14.4, cuando CONFIG_NLMON est\u00e1 habilitado, no restringe las observaciones de mensajes Netlink a un espacio de nombres de red \u00fanico, lo que permite que usuarios locales obtengan informaci\u00f3n sensible utilizando la capacidad CAP_NET_ADMIN para rastrear una interfaz nlmon para toda la actividad Netlink en el sistema."
    }
  ],
  "id": "CVE-2017-17449",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 1.9,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-12-07T00:29:00.350",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/102122"
    },
    {
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      "url": "https://access.redhat.com/errata/RHSA-2018:0654"
    },
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      "url": "https://access.redhat.com/errata/RHSA-2018:1062"
    },
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    },
    {
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    },
    {
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    },
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    },
    {
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      "url": "https://usn.ubuntu.com/3619-1/"
    },
    {
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    },
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    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/3653-2/"
    },
    {
      "source": "cve@mitre.org",
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    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/3655-2/"
    },
    {
      "source": "cve@mitre.org",
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    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.debian.org/security/2017/dsa-4073"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.debian.org/security/2018/dsa-4082"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/102122"
    },
    {
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      "url": "https://access.redhat.com/errata/RHSA-2018:0654"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://access.redhat.com/errata/RHSA-2018:0676"
    },
    {
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      "url": "https://access.redhat.com/errata/RHSA-2018:1062"
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    {
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      "url": "https://access.redhat.com/errata/RHSA-2018:1130"
    },
    {
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    },
    {
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    },
    {
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      "url": "https://source.android.com/security/bulletin/pixel/2018-04-01"
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      "url": "https://www.debian.org/security/2018/dsa-4082"
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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