(RHSA-2021:2445) Important: Red Hat Ceph Storage 4.2 Security and Bug Fix Update

Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services.

The ceph-ansible package provides Ansible playbooks for installing, maintaining, and upgrading Red Hat Ceph Storage.

The tcmu-runner packages provide a service that handles the complexity of the LIO kernel target’s userspace passthrough interface (TCMU). It presents a C plugin API for extension modules that handle SCSI requests in ways not possible or suitable to be handled by LIO’s in-kernel backstores.

Security Fix(es):

• ceph: Unauthorized global_id reuse in cephx (CVE-2021-20288)

• ceph-dashboard: Don’t use Browser’s LocalStorage for storing JWT but Secure Cookies with proper HTTP Headers (CVE-2020-27839)

• ceph-dashboard: Cross-site scripting via token Cookie (CVE-2021-3509)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

These updated packages include numerous bug fixes. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Ceph Storage 4.2 Release Notes for information on the most significant of these changes:

https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/4.2/html/release_notes/index

All users of Red Hat Ceph Storage are advised to upgrade to these updated packages, which provide numerous bug fixes.