Unconditional Path Opening Vulnerability in lxc-user-nic

CVE-2018-6556 · LOW Severity

AV:L/AC:L/AU:N/C:P/I:N/A:N

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.

Learn more about our Network Penetration Testing.