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Ubuntu 20.10 USN-4914-1 Critical: NetworkManager Denial Of Service

ubuntu
Calendar Grey April 14, 2021
Dist Ubuntu Esm H88
Uncover the implications of the NetworkManager flaw on Ubuntu 20.10 and find out how to resolve it by applying the most recent patches.
NetworkManager could be made to crash if it received specially crafted input.

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.

Topics%20covered

Topics Covered

security advisory denial of service critical software update ubuntu network-manager

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

CVE-2021-20297

Severity
critical
Lowest
Low
Medium
High
Critical

April 14, 2021

Topics%20covered

Topics Covered

security advisory denial of service critical software update ubuntu network-manager

Package Information

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

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