Detections
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CVE-2018-7191
medium
Description
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.
References
https://github.com/torvalds/linux/commit/5c25f65fd1e42685f7ccd80e0621829c105785d9
https://github.com/torvalds/linux/commit/0ad646c81b2182f7fa67ec0c8c825e0ee165696d
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748846
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html