{"id":"CVE-2017-15129","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-15129","generatedAt":"2026-10-29T01:42:44.715Z","title":"A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11.","description":"A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.","published":"2018-01-09T19:29:00.000Z","lastModified":"2026-06-17T01:07:18.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":4.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-362"],"affected":["linux/linux kernel","fedoraproject/fedora","canonical/ubuntu linux","redhat/enterprise linux","redhat/enterprise linux compute node eus","redhat/enterprise linux desktop","redhat/enterprise linux eus","redhat/enterprise linux for ibm z systems","redhat/enterprise linux for ibm z systems eus","redhat/enterprise linux for power big endian","redhat/enterprise linux for power big endian eus","redhat/enterprise linux for power little endian eus","redhat/enterprise linux for real time","redhat/enterprise linux for real time for nfv","redhat/enterprise linux for scientific computing","redhat/enterprise linux server","redhat/enterprise linux server aus","redhat/enterprise linux server tus","redhat/enterprise linux server update services for sap solutions","redhat/enterprise linux workstation"],"epss":{"score":0.00357,"percentile":0.29279,"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 (0.36%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://seclists.org/oss-sec/2018/q1/7","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/102485","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:0654","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:0676","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:1062","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:1946","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2017-15129","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1531174","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/21b5944350052d2583e82dd59b19a9ba94a007f0","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"https://marc.info/?l=linux-netdev&m=151370451121029&w=2","tags":["Mailing List","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://marc.info/?t=151370468900001&r=1&w=2","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://usn.ubuntu.com/3617-1/","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://usn.ubuntu.com/3617-2/","tags":["Third Party 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