Description
hw/display/bochs-display.c in QEMU 4.0.0 does not ensure a sufficient PCI config space allocation, leading to a buffer overflow involving the PCIe extended config space.
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 | 1:4.1-1 | — |
| Debian 13 | qemu | 1:4.1-1 | — |
| Debian 12 | qemu | 1:4.1-1 | — |
| Debian 10 | qemu | 1:3.1+dfsg-8+deb10u5 | DSA-4665-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.1 | USN-4372-1 |
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.26 | USN-4372-1 |
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.44 | USN-4372-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | qemu | 3.1.1.1-9.14.1 | SUSE-SU-2020:0844-1 |
| SLES 12 SP5 | qemu | 3.1.1.1-3.9.1 | SUSE-SU-2020:0845-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | qemu | 3.1.1.1-3.9.1 | SUSE-SU-2020:0845-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | qemu +1 | 3.1.1.1-lp151.7.12.1 | openSUSE-SU-2020:0468-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | qemu +12 | 15:4.2.1-4.el7 | ELSA-2021-9034 |
Advisories 6
- USN-4372-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4665-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2020:0845-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0844-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0468-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2021-9034 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 8, 2021
References
- https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01959.html
- openSUSE-SU-2020:0468 vendor-advisory
- DSA-4665 vendor-advisory
- USN-4372-1 vendor-advisory