Description
When a transaction is committed, C Xenstored will first check
the quota is correct before attempting to commit any nodes. It would
be possible that accounting is temporarily negative if a node has
been removed outside of the transaction.
Unfortunately, some versions of C Xenstored are assuming that the
quota cannot be negative and are using assert() to confirm it. This
will lead to C Xenstored crash when tools are built without -DNDEBUG
(this is the default).
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 | 4.17.2+55-g0b56bed864-1 | — |
| Debian 13 | xen | 4.17.2+55-g0b56bed864-1 | — |
| Debian 12 | xen | 4.17.2+76-ge1f9cb16e2-1~deb12u1 | — |
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 SP5 | xen | 4.17.2_06-150500.3.12.1 | SUSE-SU-2023:4054-1 |
| SLES 15 SP4 | xen | 4.16.5_06-150400.4.37.1 | SUSE-SU-2023:4055-1 |
| SLES 15 SP3 | xen | 4.14.6_06-150300.3.57.1 | SUSE-SU-2023:4174-1 |
| SLES 15 SP2 | xen | 4.13.5_06-150200.3.80.1 | SUSE-SU-2023:4183-1 |
| SLES 15 SP1 | xen | 4.12.4_40-150100.3.95.1 | SUSE-SU-2023:4184-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | xen | 4.12.4_40-3.97.1 | SUSE-SU-2023:4185-1 |
| SLES for SAP 15 SP3 | xen | 4.14.6_06-150300.3.57.1 | SUSE-SU-2023:4174-1 |
| SLES for SAP 15 SP2 | xen | 4.13.5_06-150200.3.80.1 | SUSE-SU-2023:4183-1 |
| SLES for SAP 15 SP1 | xen | 4.12.4_40-150100.3.95.1 | SUSE-SU-2023:4184-1 |
| SLES for SAP 12 SP5 | xen | 4.12.4_40-3.97.1 | SUSE-SU-2023:4185-1 |
| SLE Micro 5.5 | xen | 4.17.2_06-150500.3.12.1 | SUSE-SU-2023:4054-1 |
| SLE Micro 5.4 | xen | 4.16.5_06-150400.4.37.1 | SUSE-SU-2023:4055-1 |
| SLE Micro 5.3 | xen | 4.16.5_06-150400.4.37.1 | SUSE-SU-2023:4055-1 |
| SLE Micro 5.2 | xen | 4.14.6_06-150300.3.57.1 | SUSE-SU-2023:4174-1 |
| SLE Micro 5.1 | xen | 4.14.6_06-150300.3.57.1 | SUSE-SU-2023:4174-1 |
| SLE HPC 15 SP3 | xen | 4.14.6_06-150300.3.57.1 | SUSE-SU-2023:4174-1 |
| SLE HPC 15 SP2 | xen | 4.13.5_06-150200.3.80.1 | SUSE-SU-2023:4183-1 |
| SLE HPC 15 SP1 | xen | 4.12.4_40-150100.3.95.1 | SUSE-SU-2023:4184-1 |
| SUSE Manager Server 4.2 | xen | 4.14.6_06-150300.3.57.1 | SUSE-SU-2023:4174-1 |
| SUSE Manager Proxy 4.2 | xen | 4.14.6_06-150300.3.57.1 | SUSE-SU-2023:4174-1 |
| SUSE Enterprise Storage 7.1 | xen | 4.14.6_06-150300.3.57.1 | SUSE-SU-2023:4174-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.18.0_02-1.1 | openSUSE-SU-2024:13442-1 |
| openSUSE Leap 15.5 | xen | 4.17.2_06-150500.3.12.1 | SUSE-SU-2023:4054-1 |
| openSUSE Leap 15.4 | xen | 4.16.5_06-150400.4.37.1 | SUSE-SU-2023:4055-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xen | 4.17.2-r3 | — |
| Alpine v3.23 | xen | 4.17.2-r3 | — |
| Alpine v3.22 | xen | 4.17.2-r3 | — |
| Alpine v3.21 | xen | 4.17.2-r3 | — |
| Alpine v3.20 | xen | 4.17.2-r3 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xen | 4.17.2-r3 | — |
| Alpine v3.18 | xen | 4.17.2-r3 | — |
| Alpine v3.17 | xen | 4.16.5-r3 | — |
| Alpine v3.16 | xen | 4.16.5-r3 | — |
| Alpine v3.15 | xen | 4.15.5-r3 | — |
Advisories 8
- SUSE-SU-2023:4054-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4183-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4184-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4174-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4185-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13442-1 xen-4.18.0_02-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2617 Xen: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 27, 2025
- SUSE-SU-2023:4055-1 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025