Description
The qdisk PV disk backend in qemu-xen in Xen 4.2.x and 4.3.x before 4.3.1, and qemu 1.1 and other versions, allows local HVM guests to cause a denial of service (domain grant reference consumption) via unspecified vectors.
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 | qemu | 1.7.0+dfsg-1 | — |
| Debian 14 | xen | 4.2 | — |
| Debian 13 | qemu | 1.7.0+dfsg-1 | — |
| Debian 13 | xen | 4.2 | — |
| Debian 12 | qemu | 1.7.0+dfsg-1 | — |
| Debian 12 | xen | 4.2 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.7.0_12-1.3 | openSUSE-SU-2024:10196-1 |
Advisories 1
- openSUSE-SU-2024:10196-1 xen-4.7.0_12-1.3 on GA media SUSE / openSUSE Security Updates · May 7, 2025