Description
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.
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 | 1:2.5+dfsg-1 | — |
| Debian 13 | qemu | 1:2.5+dfsg-1 | — |
| Debian 12 | qemu | 1:2.5+dfsg-1 | — |
| Debian 8 | qemu | 1:2.1+dfsg-12+deb8u5a | DSA-3471-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.22 | USN-2891-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | qemu | 2.3.1-14.1 | SUSE-SU-2016:1703-1 |
| SLES 12 SP1 | xen | 4.5.2_06-7.1 | SUSE-SU-2016:0873-1 |
| SLES 12 | qemu | 2.0.2-48.19.1 | SUSE-SU-2016:1560-1 |
| SLES 12 | xen | 4.4.4_02-22.19.1 | SUSE-SU-2016:1318-1 |
| SLES 11 SP4 | kvm | 1.4.2-44.1 | SUSE-SU-2016:1785-1 |
| SLES 11 SP4 | xen | 4.4.4_02-32.1 | SUSE-SU-2016:0955-1 |
| SLES 11 SP3 | kvm | 1.4.2-46.1 | SUSE-SU-2016:1698-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | qemu | 2.3.1-14.1 | SUSE-SU-2016:1703-1 |
| SLES for SAP 12 SP1 | xen | 4.5.2_06-7.1 | SUSE-SU-2016:0873-1 |
| SLES for SAP 12 | qemu | 2.0.2-48.19.1 | SUSE-SU-2016:1560-1 |
| SLES for SAP 12 | xen | 4.4.4_02-22.19.1 | SUSE-SU-2016:1318-1 |
| SLES for SAP 11 SP4 | kvm | 1.4.2-44.1 | SUSE-SU-2016:1785-1 |
| SLES for SAP 11 SP4 | xen | 4.4.4_02-32.1 | SUSE-SU-2016:0955-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.7.0_12-1.3 | openSUSE-SU-2024:10196-1 |
Advisories 10
- USN-2891-1 qemu, qemu-kvm vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- DSA-3471-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:1703-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1318-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1785-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1560-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1698-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0955-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10196-1 xen-4.7.0_12-1.3 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2016:0873-1 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025
References
- [oss-security] 20151214 CVE-2015-7549 Qemu: pci: msi-x: null pointer dereference issue mailing-list
- 80761 vdb-entry
- DSA-3471 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1291137
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=43b11a91dd861a946b231b89b754285
- GLSA-201602-01 vendor-advisory
- FEDORA-2016-e9bba2bb01 vendor-advisory