{"id":"CVE-2017-17449","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-17449","generatedAt":"2026-10-28T23:38:34.104Z","title":"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…","description":"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.","published":"2017-12-07T00:29:00.000Z","lastModified":"2026-06-17T01:10:49.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":4.7,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-200"],"affected":["linux/linux kernel"],"epss":{"score":0.00436,"percentile":0.37754,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/102122","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"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","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"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","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"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","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"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"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-17449","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}