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Link Following Affecting systemd-libs package, versions *

medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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NVD
7.8 high
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SUSE
7.1 high
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Red Hat
7 high

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  • Snyk ID SNYK-CENTOS7-SYSTEMDLIBS-1991599
  • published 26 Jul 2021
  • disclosed 25 Jan 2018
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Introduced: 25 Jan 2018

CVE-2018-6954 Open this link in a new tab
CWE-59 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 systemd-libs.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd-libs package and not the systemd-libs package as distributed by Centos. See How to fix? for Centos:7 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.