CVE-2018-6556
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-6556
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-6556.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1:3.0.2-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 1:2.0.9-6.1 |
| debian | bullseye | fixed | 1:2.0.9-6.1 |
| debian | forky | fixed | 1:2.0.9-6.1 |
| debian | sid | fixed | 1:2.0.9-6.1 |
| debian | trixie | fixed | 1:2.0.9-6.1 |
References
Verify integrity in audit chain (admin only). AS-IS.