Description
Xen 4.3.x, 4.4.x, and 4.5.x, when using toolstack disaggregation, allows remote domains with partial management control to cause a denial of service (host lock) via unspecified domctl operations.
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 | 4.4.1-9 | — |
| Debian 13 | xen | 4.4.1-9 | — |
| Debian 12 | xen | 4.4.1-9 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | xen | 4.4.1-0ubuntu0.14.04.5 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | xen | 4.4.2_02-15.1 | SUSE-SU-2015:0923-1, SUSE-SU-2015:0701-1 |
| SLES 11 SP3 | xen | 4.2.5_12-15.1 | SUSE-SU-2015:1479-2, SUSE-SU-2015:1479-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | xen | 4.4.2_02-15.1 | SUSE-SU-2015:0923-1, SUSE-SU-2015:0701-1 |
| SLES for SAP 11 SP3 | xen | 4.2.5_12-15.1 | SUSE-SU-2015:1479-1 |
Advisories 4
- SUSE-SU-2015:0701-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:0923-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1479-2 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1479-1 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025
References
- GLSA-201504-04 vendor-advisory
- FEDORA-2015-5295 vendor-advisory
- SUSE-SU-2015:0923 vendor-advisory
- 1031997 vdb-entry
- FEDORA-2015-5208 vendor-advisory
- 73443 vdb-entry
- FEDORA-2015-5402 vendor-advisory
- http://xenbits.xen.org/xsa/advisory-127.html