RE: are they important
Following the links in the story:
- both 21.10 release, and 20.04 / 5.14 LTS builds contains Medium-level CVE's
- however, 20.04 LTS / 5.04 build contains a High-level CVE, CVE-2022-0492
etc.
So yes, I would say that they should be applied as soon as possible.