{"id":"CVE-2018-14646","aliases":["EUVD-2018-6544","GHSA-x5cj-fgc8-52c7","RHSA-2018:3651","RHSA-2018:3666","RHSA-2018:3843","UBUNTU-CVE-2018-14646"],"status":"published","title":"The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in...","description":"The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.00393,"percentile":0.3372,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2018-11-26T19:00:00Z","modified":"2026-07-01T10:05:12Z","fixes":[{"ecosystem":"Red Hat:rhel_eus:7.5::computenode","package":"kernel","fixed_in":["0:3.10.0-862.25.3.el7"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:7.5::computenode","package":"kernel-abi-whitelists","fixed_in":["0:3.10.0-862.25.3.el7"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:7.5::computenode","package":"kernel-debug","fixed_in":["0:3.10.0-862.25.3.el7"],"sources":["osv"]},{"ecosystem":"Red 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Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.","status":"published","published":"2018-11-26T19:00:00Z","modified":"2024-08-05T09:38:13.102Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:35:00.589142Z"}],"euvd":[{"id":"EUVD-2018-6544","description":"The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.","status":"published","published":"2018-11-26T19:00:00Z","modified":"2024-08-05T09:38:13Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T02:39:46.259365Z"}],"ghsa":[{"id":"GHSA-x5cj-fgc8-52c7","title":"The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in...","description":"The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.","status":"published","published":"2022-05-13T01:34:30Z","modified":"2023-02-01T05:08:22Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:50:45.067904Z"}],"nvd":[{"id":"CVE-2018-14646","description":"The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.","status":"published","published":"2018-11-26T19:29:00.247Z","modified":"2026-06-17T01:41:21.897Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:04:48.987926Z"}],"osv":[{"id":"RHSA-2018:3651","title":"Red Hat Security Advisory: kernel security, bug fix, and enhancement update","status":"published","published":"2024-09-13T16:54:01Z","modified":"2026-07-01T10:05:09Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:05.383061Z"},{"id":"RHSA-2018:3666","title":"Red Hat Security Advisory: kernel-rt security and bug fix update","status":"published","published":"2024-09-13T16:54:12Z","modified":"2026-07-01T10:05:10Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:05.383061Z"},{"id":"RHSA-2018:3843","title":"Red Hat Security Advisory: kernel security and bug fix update","status":"published","published":"2024-09-13T15:09:06Z","modified":"2026-07-01T10:05:12Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:05.383061Z"},{"id":"UBUNTU-CVE-2018-14646","description":"The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.","status":"withdrawn","published":"2018-11-26T19:29:00Z","modified":"2025-07-16T07:38:02.531344Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:17.014176Z"}]}}