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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2018-18308 | 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. |
Ubuntu USN |
USN-3730-1 | LXC vulnerability |
References
History
No history.
Status: PUBLISHED
Assigner: canonical
Published:
Updated: 2024-09-17T03:38:26.856Z
Reserved: 2018-02-02T00:00:00.000Z
Link: CVE-2018-6556
No data.
Status : Modified
Published: 2018-08-10T15:29:01.297
Modified: 2024-11-21T04:10:53.970
Link: CVE-2018-6556
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Ubuntu USN