Missing Authentication for Critical Function Affecting systemd-python package, versions <0:219-78.amzn2.0.20


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.19% (57th percentile)

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  • Snyk IDSNYK-AMZN2-SYSTEMDPYTHON-3042661
  • published12 Oct 2022
  • disclosed10 May 2021

Introduced: 10 May 2021

CVE-2020-13529  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 systemd-python 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-python package and not the systemd-python package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.

CVSS Scores

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