{"id":"CVE-2018-7191","details":"In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.","modified":"2026-03-12T22:55:42.466552Z","published":"2019-05-17T05:29:00.223Z","related":["SUSE-SU-2019:1527-1","SUSE-SU-2019:1529-1","SUSE-SU-2019:1530-1","SUSE-SU-2019:1532-1","SUSE-SU-2019:1534-1","SUSE-SU-2019:1535-1","SUSE-SU-2019:1536-1","SUSE-SU-2019:1550-1","SUSE-SU-2019:1870-1","SUSE-SU-2019:2430-1","openSUSE-SU-2019:1479-1","openSUSE-SU-2019:1579-1"],"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html"},{"type":"WEB","url":"http://www.securityfocus.com/bid/108380"},{"type":"ADVISORY","url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14"},{"type":"FIX","url":"https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748846"},{"type":"FIX","url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ad646c81b2182f7fa67ec0c8c825e0ee165696d"},{"type":"FIX","url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c25f65fd1e42685f7ccd80e0621829c105785d9"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/0ad646c81b2182f7fa67ec0c8c825e0ee165696d"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/5c25f65fd1e42685f7ccd80e0621829c105785d9"},{"type":"EVIDENCE","url":"https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743792"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"4.13.14"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-7191.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}