Description
An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.
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 | 4.11.1-1 | — |
| Debian 13 | xen | 4.11.1-1 | — |
| Debian 12 | xen | 4.11.1-1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | xen | 4.11.1_02-2.3.1 | SUSE-SU-2019:0003-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | xen | 4.11.1_02-2.3.1 | SUSE-SU-2019:0003-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.15.1_01-1.2 | openSUSE-SU-2024:11520-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xen | 4.11.1-r0 | — |
| Alpine v3.23 | xen | 4.11.1-r0 | — |
| Alpine v3.22 | xen | 4.11.1-r0 | — |
| Alpine v3.21 | xen | 4.11.1-r0 | — |
| Alpine v3.20 | xen | 4.11.1-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xen | 4.11.1-r0 | — |
| Alpine v3.18 | xen | 4.11.1-r0 | — |
| Alpine v3.17 | xen | 4.11.1-r0 | — |
| Alpine v3.16 | xen | 4.11.1-r0 | — |
| Alpine v3.15 | xen | 4.11.1-r0 | — |
| Alpine v3.14 | xen | 4.11.1-r0 | — |
| Alpine v3.13 | xen | 4.11.1-r0 | — |
| Alpine v3.12 | xen | 4.11.1-r0 | — |
| Alpine v3.11 | xen | 4.11.1-r0 | — |
| Alpine v3.10 | xen | 4.11.1-r0 | — |
| Alpine v3.9 | xen | 4.11.1-r0 | — |
Advisories 2
- SUSE-SU-2019:0003-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11520-1 xen-4.15.1_01-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025