CVE-2018-6556 — Vulnetix

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CVE-2018-6556 PUBLISHED

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.

EPSS 0.06% · 18.4th percentile

Risk Scores

EPSS Score

0.06%

18.4th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:18.04:LTS	lxc	0, 2.1.0-0ubuntu1, 2.1.1-0ubuntu1

Timeline

Aug 6, 2018 CVE Published
Apr 14, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Oct 24, 2021 EPSS Score
Dec 25, 2021 EPSS Score
Feb 25, 2022 EPSS Score
Apr 28, 2022 EPSS Score
Jun 29, 2022 EPSS Score
Aug 31, 2022 EPSS Score
Nov 1, 2022 EPSS Score
Jan 1, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2018-6556 third-party-advisory
https://ubuntu.com/security/notices/USN-3730-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2018-6556 third-party-advisory

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