Expected Behavior Violation Affecting systemd package, versions <0:219-78.amzn2.0.20


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-AMZN2-SYSTEMD-3042667
  • published12 Oct 2022
  • disclosed3 Jun 2020

Introduced: 3 Jun 2020

CVE-2020-13776  (opens in a new tab)
CWE-440  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 systemd to version 0:219-78.amzn2.0.20 or higher.
This issue was patched in ALAS2-2022-1854.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.

CVSS Scores

version 3.1