CVE-2018-6556

LowCVSS 3.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 3.3/10CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-417

Affected software

VendorProductVersions
n/aLXC>= 2.0.9, < 2.0*; >= 3.0.0, < 3.0*

References

Timeline

Published
Aug 10, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

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CVE-2018-6556: Low severity, CVSS 3.3 | Vulnix