CVE-2018-6556 – The lxc-user-nic component of LXC allows unprivileged users to open arbitrary files

https://notcve.org/view.php?id=CVE-2018-6556

06 Aug 2018 — lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn't otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2. Cuando se solicita a lxc-user-nic ... • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html • CWE-417: Communication Channel Errors •