CVE-2017-17449 (GCVE-0-2017-17449)

Vulnerability from cvelistv5 – Published: 2017-12-07 00:00 – Updated: 2024-08-05 20:51
VLAI?
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.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://usn.ubuntu.com/3619-2/ vendor-advisoryx_refsource_UBUNTU
https://www.debian.org/security/2018/dsa-4082 vendor-advisoryx_refsource_DEBIAN
https://lkml.org/lkml/2017/12/5/950 x_refsource_MISC
http://www.securityfocus.com/bid/102122 vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2018:1062 vendor-advisoryx_refsource_REDHAT
https://source.android.com/security/bulletin/pixe… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:0654 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:0676 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3653-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3655-1/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:1170 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:1130 vendor-advisoryx_refsource_REDHAT
https://www.debian.org/security/2017/dsa-4073 vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/3655-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3653-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3657-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3619-1/ vendor-advisoryx_refsource_UBUNTU
Date Public ?
2017-12-06 00:00
Show details on NVD website
To clipboard 

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      "sourceIdentifier": "cve@mitre.org",
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      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-200\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2017-17449\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2017-12-07T00:29:00.350\",\"lastModified\":\"2026-05-13T00:24:29.033\",\"vulnStatus\":\"Modified\",\"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.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:M/Au:N/C:P/I:N/A:N\",\"baseScore\":1.9,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.4,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.14.4\",\"matchCriteriaId\":\"73A9E8BB-A037-453D-8A98-A22D9B0A0020\"}]}]}],\"references\":[{\"url\":\"http://www.securityfocus.com/bid/102122\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:0654\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:0676\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:1062\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:1130\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:1170\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lkml.org/lkml/2017/12/5/950\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://source.android.com/security/bulletin/pixel/2018-04-01\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/3619-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/3619-2/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/3653-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/3653-2/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/3655-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/3655-2/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/3657-1/\",\"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\":\"cve@mitre.org\"},{\"url\":\"http://www.securityfocus.com/bid/102122\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:0654\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:0676\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:1062\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:1130\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:1170\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lkml.org/lkml/2017/12/5/950\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://source.android.com/security/bulletin/pixel/2018-04-01\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/3619-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/3619-2/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/3653-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/3653-2/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/3655-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/3655-2/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/3657-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.debian.org/security/2017/dsa-4073\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.debian.org/security/2018/dsa-4082\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.