Description
The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.
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 | 4.8.0~rc3-1 | — |
| Debian 13 | xen | 4.8.0~rc3-1 | — |
| Debian 12 | xen | 4.8.0~rc3-1 | — |
| Debian 8 | xen | 4.4.4lts1-0+deb8u1 | DLA-1493-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | xen | 4.6.0-1ubuntu4.1 | — |
| Ubuntu 14.04 LTS | xen | 4.4.2-0ubuntu0.14.04.6 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | xen | 4.5.3_08-17.1 | SUSE-SU-2016:2093-1 |
| SLES 12 | xen | 4.4.4_04-22.22.2 | SUSE-SU-2016:2533-1 |
| SLES 11 SP4 | xen | 4.4.4_07-37.1 | SUSE-SU-2016:2100-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | xen | 4.5.3_08-17.1 | SUSE-SU-2016:2093-1 |
| SLES for SAP 12 | xen | 4.4.4_04-22.22.2 | SUSE-SU-2016:2533-1 |
| SLES for SAP 11 SP4 | xen | 4.4.4_07-37.1 | SUSE-SU-2016:2100-1 |
Advisories 4
- DLA-1493-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:2533-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2100-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2093-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026