CVE-2018-6954

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Feb 13, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-6954: High severity, CVSS 7.8 | Vulnix