Description
The HVMOP_set_mem_access HVM control operations in Xen 4.1.x for 32-bit and 4.1.x through 4.4.x for 64-bit allow local guest administrators to cause a denial of service (CPU consumption) by leveraging access to certain service domains for HVM guests and a large input.
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 | 4.4.1-1 | — |
| Debian 13 | xen | 4.4.1-1 | — |
| Debian 12 | xen | 4.4.1-1 | — |
| Debian 7 | xen | 4.1.4-3+deb7u2 | DSA-3006-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | xen | 4.4.0-0ubuntu5.1 | — |
Advisories 1
- DSA-3006-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- [oss-security] 20140325 Re: Xen Security Advisory 89 - HVMOP_set_mem_access is not preemptible mailing-list
- openSUSE-SU-2014:1279 vendor-advisory
- GLSA-201407-03 vendor-advisory
- [oss-security] 20140325 Xen Security Advisory 89 - HVMOP_set_mem_access is not preemptible mailing-list
- http://xenbits.xen.org/xsa/advisory-89.html
- DSA-3006 vendor-advisory
- 1029956 vdb-entry
- 66407 vdb-entry