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CVE-2018-6954 The advisory has been revoked - it doesn't affect any version of package systemd  (opens in a new tab)

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EPSS
0.53% (42nd percentile)

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  • Snyk IDSNYK-UBUNTU1404-SYSTEMD-613355
  • published13 Feb 2018
  • disclosed13 Feb 2018
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Introduced: 13 Feb 2018

CVE-2018-6954  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:14.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu.

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.

References