Missing Authentication for Critical Function Affecting libgudev1 package, versions <0:219-78.amzn2.0.20


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.43% (73rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2-LIBGUDEV1-3042935
  • 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 libgudev1 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 libgudev1 package and not the libgudev1 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 Base Scores

version 3.1