Description
x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Xen | xen | — | — |
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 | xen | 4.17.0+74-g3eac216e6e-1 | — |
| Debian 13 | xen | 4.17.0+74-g3eac216e6e-1 | — |
| Debian 12 | xen | 4.17.0+74-g3eac216e6e-1 | — |
| Debian 11 | xen | 4.14.5+94-ge49571868d-1 | DSA-5378-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | xen | No fix yet | — |
| Ubuntu 26.04 LTS | xen | No fix yet | — |
| Ubuntu 25.10 | xen | No fix yet | — |
| Ubuntu 24.04 LTS | xen | No fix yet | — |
| Ubuntu 22.04 LTS | xen | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | xen | No fix yet | — |
| Ubuntu 18.04 LTS | xen | No fix yet | — |
| Ubuntu 16.04 LTS | xen | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | xen | 4.16.3_06-150400.4.25.1 | SUSE-SU-2023:0848-1 |
| SLES 15 SP3 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SLES 15 SP2 | xen | 4.13.4_20-150200.3.71.1 | SUSE-SU-2023:0862-1 |
| SLES 15 SP1 | xen | 4.12.4_34-150100.3.86.1 | SUSE-SU-2023:0858-1 |
| SLES 12 SP5 | xen | 4.12.4_34-3.88.1 | SUSE-SU-2023:0845-1 |
Show 20 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | xen | 4.11.4_38-2.89.1 | SUSE-SU-2023:0859-1 |
| SLES for SAP 15 SP3 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SLES for SAP 15 SP2 | xen | 4.13.4_20-150200.3.71.1 | SUSE-SU-2023:0862-1 |
| SLES for SAP 15 SP1 | xen | 4.12.4_34-150100.3.86.1 | SUSE-SU-2023:0858-1 |
| SLES for SAP 12 SP5 | xen | 4.12.4_34-3.88.1 | SUSE-SU-2023:0845-1 |
| SLES for SAP 12 SP4 | xen | 4.11.4_38-2.89.1 | SUSE-SU-2023:0859-1 |
| SLE Real Time 15 SP3 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SLE Micro 5.4 | xen | 4.16.3_06-150400.4.25.1 | SUSE-SU-2023:0848-2 |
| SLE Micro 5.3 | xen | 4.16.3_06-150400.4.25.1 | SUSE-SU-2023:0848-1 |
| SLE Micro 5.2 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SLE Micro 5.1 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SLE HPC 15 SP3 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SLE HPC 15 SP2 | xen | 4.13.4_20-150200.3.71.1 | SUSE-SU-2023:0862-1 |
| SLE HPC 15 SP1 | xen | 4.12.4_34-150100.3.86.1 | SUSE-SU-2023:0858-1 |
| SUSE OpenStack Cloud Crowbar 9 | xen | 4.11.4_38-2.89.1 | SUSE-SU-2023:0859-1 |
| SUSE OpenStack Cloud 9 | xen | 4.11.4_38-2.89.1 | SUSE-SU-2023:0859-1 |
| SUSE Manager Server 4.2 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SUSE Manager Proxy 4.2 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SUSE Enterprise Storage 7.1 | xen | 4.14.5_12-150300.3.48.1 | SUSE-SU-2023:0847-1 |
| SUSE Enterprise Storage 7 | xen | 4.13.4_20-150200.3.71.1 | SUSE-SU-2023:0862-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.17.0_06-1.1 | openSUSE-SU-2024:12833-1 |
| openSUSE Leap 15.4 | xen | 4.16.3_06-150400.4.25.1 | SUSE-SU-2023:0848-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | xen | 4.16.3_06-150400.4.25.1 | SUSE-SU-2023:0848-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xen | 4.17.0-r5 | — |
| Alpine v3.23 | xen | 4.17.0-r5 | — |
| Alpine v3.22 | xen | 4.17.0-r5 | — |
| Alpine v3.21 | xen | 4.17.0-r5 | — |
| Alpine v3.20 | xen | 4.17.0-r5 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xen | 4.17.0-r5 | — |
| Alpine v3.18 | xen | 4.17.0-r5 | — |
| Alpine v3.17 | xen | 4.16.4-r0 | — |
| Alpine v3.16 | xen | 4.16.4-r0 | — |
| Alpine v3.15 | xen | 4.15.5-r0 | — |
Advisories 10
- DSA-5378-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:0859-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0858-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0847-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0862-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0845-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12833-1 xen-4.17.0_06-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0848-1 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2023:0848-2 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-0703 Xen: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 4, 2024
References
- https://xenbits.xenproject.org/xsa/advisory-428.txt
- http://xenbits.xen.org/xsa/advisory-428.html
- [oss-security] 20230321 Xen Security Advisory 428 v3 (CVE-2022-42333,CVE-2022-42334) - x86/HVM pinned cache attributes mis-handling mailing-list
- FEDORA-2023-703f133eb3 vendor-advisory
- FEDORA-2023-da8315e641 vendor-advisory
- DSA-5378 vendor-advisory
- https://security.gentoo.org/glsa/202402-07