Comment 24 for bug 1970507

Since this has way too many CVEs/patches at once, we decided to break it down into multiple updates over time, that way reducing the risk of regression. I've added about half of the 2020 CVEs and uploaded a version to security-proposed ppa:
https://launchpad.net/~ubuntu-security-proposed/+archive/ubuntu/ppa/+packages?field.name_filter=xen&field.status_filter=published&field.series_filter=

Please test it and share the results with us.