Ubuntu Security Notices
USN-4914-1

USN-4914-1: NetworkManager vulnerability

Publication date

14 April 2021

Overview

NetworkManager could be made to crash if it received specially crafted input.

Releases

20.10

Packages

network-manager - Network connection manager

Details

It was discovered that NetworkManager incorrectly handled certain profiles.
A local attacker could possibly use this issue to cause NetworkManager to
crash, resulting in a denial of service.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release	Package Version
20.10 groovy	network-manager – 1.26.2-1ubuntu1.1

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References

CVE-2021-20297

CVE-2021-20297