A NetworkManager security update has been released for Ubuntu Linux 20.10.

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Ubuntu Security Notice USN-4914-1
April 14, 2021

network-manager vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.10

Summary:

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

Software Description:
- 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:

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

Ubuntu 20.10:
network-manager 1.26.2-1ubuntu1.1

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

References:
  https://ubuntu.com/security/notices/USN-4914-1
CVE-2021-20297

Package Information:
  https://launchpad.net/ubuntu/+source/network-manager/1.26.2-1ubuntu1.1