Improper Input Validation Affecting systemd package, versions <237-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-DEBIAN10-SYSTEMD-305136
  • published3 Jan 2019
  • disclosed14 Jan 2019

Introduced: 3 Jan 2019

CVE-2018-16888  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-732  (opens in a new tab)
CWE-250  (opens in a new tab)

How to fix?

Upgrade Debian:10 systemd to version 237-1 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 Debian. See How to fix? for Debian:10 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.

CVSS Scores

version 3.1