Description
Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact.
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+24-g2f8851c37f-2 | — |
| Debian 13 | xen | 4.17.0+24-g2f8851c37f-2 | — |
| Debian 12 | xen | 4.17.0+24-g2f8851c37f-2 | — |
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 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.17.0_04-1.1 | openSUSE-SU-2024:12644-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xen | 4.17.0-r2 | — |
| Alpine v3.23 | xen | 4.17.0-r2 | — |
| Alpine v3.22 | xen | 4.17.0-r2 | — |
| Alpine v3.21 | xen | 4.17.0-r2 | — |
| Alpine v3.20 | xen | 4.17.0-r2 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xen | 4.17.0-r2 | — |
| Alpine v3.18 | xen | 4.17.0-r2 | — |
Advisories 2
- openSUSE-SU-2024:12644-1 xen-4.17.0_04-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0205 Xen: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Feb 4, 2024
References
- https://xenbits.xenproject.org/xsa/advisory-425.txt
- GLSA-202402-07 vendor-advisory