Description
An authentication flaw was found in ceph in versions before 14.2.20. When the monitor handles CEPHX_GET_AUTH_SESSION_KEY requests, it doesn't sanitize other_keys, allowing key reuse. An attacker who can request a global_id can exploit the ability of any user to request a global_id previously associated with another user, as ceph does not force the reuse of old keys to generate new ones. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | ceph | ceph 14.2.20 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ceph | 14.2.20-1 | — |
| Debian 13 | ceph | 14.2.20-1 | — |
| Debian 12 | ceph | 14.2.20-1 | — |
| Debian 10 | ceph | 12.2.11+dfsg1-2.1+deb10u1 | DLA-3629-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ceph | 15.2.12-0ubuntu0.20.04.1 | USN-4998-1 |
| Ubuntu 18.04 LTS | ceph | 12.2.13-0ubuntu0.18.04.10 | USN-5128-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | ceph | No fix yet | — |
| Ubuntu Pro 16.04 LTS | ceph | No fix yet | — |
| Ubuntu Pro 14.04 LTS | ceph | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Ceph Storage 4 | ceph +32 | 2:14.2.11-181.el7cp | RHSA-2021:2445 |
| Red Hat Ceph Storage 4 | python3-rbd +4 | 2:14.2.11-181.el8cp | RHSA-2021:2445 |
| Red Hat Ceph Storage 3 | ceph +24 | 2:12.2.12-141.el7cp | RHSA-2022:1394 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | ceph | 15.2.11.83+g8a15f484c2-3.20.1 | SUSE-SU-2021:1474-1 |
| SLES 15 SP2 | ceph | 15.2.11.83+g8a15f484c2-3.20.1 | SUSE-SU-2021:1474-1 |
| SLES 15 SP1 | ceph | 14.2.20.402+g6aa76c6815-3.60.1 | SUSE-SU-2021:1473-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | ceph | 14.2.20.402+g6aa76c6815-3.60.1 | SUSE-SU-2021:1473-1 |
| SLE HPC 15 SP1 | ceph | 14.2.20.402+g6aa76c6815-3.60.1 | SUSE-SU-2021:1473-1 |
| SUSE Manager Server 4.0 | ceph | 14.2.20.402+g6aa76c6815-3.60.1 | SUSE-SU-2021:1473-1 |
| SUSE Manager Retail Branch Server 4.0 | ceph | 14.2.20.402+g6aa76c6815-3.60.1 | SUSE-SU-2021:1473-1 |
| SUSE Manager Proxy 4.0 | ceph | 14.2.20.402+g6aa76c6815-3.60.1 | SUSE-SU-2021:1473-1 |
| SUSE Enterprise Storage 7 | ceph | 15.2.11.83+g8a15f484c2-3.20.1 | SUSE-SU-2021:1474-1 |
| SUSE Enterprise Storage 6 | ceph | 14.2.20.402+g6aa76c6815-3.60.1 | SUSE-SU-2021:1473-1 |
| SUSE Enterprise Storage 6 | deepsea | 0.9.35+git.0.5a1dc9fe-3.34.1 | SUSE-SU-2021:1472-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | benji | 0.15.0-1.2 | openSUSE-SU-2024:10649-1 |
| openSUSE Leap 15.2 | ceph +1 | 15.2.11.83+g8a15f484c2-lp152.2.15.1 | openSUSE-SU-2021:0672-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | ceph16 | 16.2.3-r0 | — |
| Alpine v3.17 | ceph16 | 16.2.3-r0 | — |
| Alpine v3.16 | ceph | 16.2.3-r0 | — |
| Alpine v3.15 | ceph | 16.2.3-r0 | — |
| Alpine v3.14 | ceph | 16.2.3-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.12 | ceph | 14.2.20-r0 | — |
| Alpine v3.11 | ceph | 14.2.20-r0 | — |
Advisories 11
- RHSA-2022:1394 Red Hat Security Advisory: Red Hat Ceph Storage 3 Security and Bug Fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:2445 Red Hat Security Advisory: Red Hat Ceph Storage 4.2 Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-5128-1 ceph vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-4998-1 ceph vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-3629-1 ceph - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2021:1474-1 Security update for ceph SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10649-1 benji-0.15.0-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0672-1 Security update for ceph SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1472-1 Security update for ceph, deepsea SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1473-1 Security update for ceph SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2729 Red Hat Ceph Storage: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 23, 2023
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1938031
- FEDORA-2021-e29c1ee892 vendor-advisory
- FEDORA-2021-e65b9fb52e vendor-advisory
- FEDORA-2021-168fbed46f vendor-advisory
- GLSA-202105-39 vendor-advisory
- [debian-lts-announce] 20231023 [SECURITY] [DLA 3629-1] ceph security update mailing-list