Description
The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.
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 | 4.4.0-1 | — |
| Debian 13 | xen | 4.4.0-1 | — |
| Debian 12 | xen | 4.4.0-1 | — |
| Debian 7 | xen | 4.1.6.lts1-12 | DLA-1270-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | xen | 4.4.2-0ubuntu0.14.04.9 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | xen +1 | 3.0.3-148.el5_11 | RHSA-2016:2963 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Virtualization 5 | xen +1 | 3.0.3-148.el5_11 | RHSA-2016:2963 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | xen | 4.7.1_02-25.1 | SUSE-SU-2016:3067-1 |
| SLES 12 SP1 | xen | 4.5.5_02-22.3.1 | SUSE-SU-2016:3083-1 |
| SLES 12 | xen | 4.4.4_05-22.25.1 | SUSE-SU-2016:3156-1 |
| SLES 11 SP4 | xen | 4.4.4_10-43.5 | SUSE-SU-2016:3174-1 |
| SLES 11 SP3 | xen | 4.2.5_21-30.1 | SUSE-SU-2016:3273-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP2 | xen | 4.1.6_08-32.1 | SUSE-SU-2016:3044-1 |
| SLES for SAP 12 SP2 | xen | 4.7.1_02-25.1 | SUSE-SU-2016:3067-1 |
| SLES for SAP 12 SP1 | xen | 4.5.5_02-22.3.1 | SUSE-SU-2016:3083-1 |
| SLES for SAP 12 | xen | 4.4.4_05-22.25.1 | SUSE-SU-2016:3156-1 |
| SLES for SAP 11 SP4 | xen | 4.4.4_10-43.5 | SUSE-SU-2016:3174-1 |
| SUSE OpenStack Cloud 5 | xen | 4.2.5_21-30.1 | SUSE-SU-2016:3273-1 |
| SUSE Manager Proxy 2.1 | xen | 4.2.5_21-30.1 | SUSE-SU-2016:3273-1 |
| SUSE Manager 2.1 | xen | 4.2.5_21-30.1 | SUSE-SU-2016:3273-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | xen | 4.2.5_21-30.1 | SUSE-SU-2016:3273-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.15.1_01-1.2 | openSUSE-SU-2024:11520-1 |
Advisories 9
- RHSA-2016:2963 Red Hat Security Advisory: xen security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DLA-1270-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:3044-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3067-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3174-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3156-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3273-1 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
- SUSE-SU-2016:3083-1 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025
References
- 94699 vdb-entry
- GLSA-201612-56 vendor-advisory
- https://support.citrix.com/article/CTX219136
- [debian-lts-announce] 20180206 [SECURITY] [DLA 1270-1] xen security update mailing-list
- http://xenbits.xen.org/xsa/advisory-199.html
- 1037397 vdb-entry
- RHSA-2016:2963 vendor-advisory