Can someone tell me if my system is affected by the "Copy Fail" vulnerability?

Before updating my server, my kernel version was 6.8.0-060-generic. After updating it, it became 6.8.0-010-generic. Next day I updated again and it became 6.8.0-111-generic. I'm confused why kernel version changed multiple times after update. I cannot even go to Ubuntu website to check if my new version is unaffected because the site seems down.