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This is the first bugfix release in the Pacific stable series. It addresses a security vulnerability in the Ceph authentication framework.
We recommend all Pacific users upgrade.
This release includes a security fix that ensures the global_id value (a numeric value that should be unique for every authenticated client or daemon in the cluster) is reclaimed after a network disconnect or ticket renewal in a secure fashion. Two new health alerts may appear during the upgrade indicating that there are clients or daemons that are not yet patched with the appropriate fix.
To temporarily mute the health alerts around insecure clients for the duration of the upgrade, you may want to:
ceph health mute AUTH_INSECURE_GLOBAL_ID_RECLAIM 1h ceph health mute AUTH_INSECURE_GLOBAL_ID_RECLAIM_ALLOWED 1hFor more information, CVE-2021-20288`