Link Following Affecting systemd-sysvinit package, versions <234-24.20.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-SLES150-SYSTEMDSYSVINIT-2757075
  • published14 Apr 2022
  • disclosed21 Jan 2019

Introduced: 21 Jan 2019

CVE-2018-6954  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 systemd-sysvinit to version 234-24.20.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd-sysvinit package and not the systemd-sysvinit package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

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.

CVSS Scores

version 3.1