This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2018-6556 →
DEBIAN-CVE-2018-6556
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 us...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
lxc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.0.9-6.1"}]}]
Debian:13
lxc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.0.9-6.1"}]}]
Debian:14
lxc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.0.9-6.1"}]}]
References
- advisory security-tracker.debian.org