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Execution with Unnecessary Privileges Affecting systemd package, versions <0:219-67.el7

0.0
medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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NVD
4.7 medium
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Red Hat
4.4 medium

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  • Snyk ID SNYK-CENTOS7-SYSTEMD-2143524
  • published 26 Jul 2021
  • disclosed 17 Aug 2017
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Introduced: 17 Aug 2017

CVE-2018-16888 Open this link in a new tab
CWE-250 Open this link in a new tab

How to fix?

Upgrade Centos:7 systemd to version 0:219-67.el7 or higher.

NVD Description

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

It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.