Description
Memory leak in the keyboard input event handlers support in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events.
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 | 1:2.8+dfsg-5 | — |
| Debian 13 | qemu | 1:2.8+dfsg-5 | — |
| Debian 12 | qemu | 1:2.8+dfsg-5 | — |
| Debian 8 | qemu | 1:2.1+dfsg-12+deb8u7 | DLA-1497-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.14 | USN-3289-1 |
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.34 | USN-3289-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 11 | qemu-img-rhev +3 | 10:2.9.0-10.el7 | RHSA-2017:2408 |
| Red Hat OpenStack 10 | qemu-img-rhev +3 | 10:2.9.0-10.el7 | RHSA-2017:2408 |
| Red Hat OpenStack 9 | qemu-img-rhev +3 | 10:2.9.0-10.el7 | RHSA-2017:2408 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 8 | qemu-img-rhev +3 | 10:2.9.0-10.el7 | RHSA-2017:2408 |
| Red Hat OpenStack 7 | qemu-img-rhev +3 | 10:2.9.0-10.el7 | RHSA-2017:2408 |
| Red Hat OpenStack 6 | qemu-img-rhev +3 | 10:2.9.0-10.el7 | RHSA-2017:2408 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | qemu | 2.6.2-41.16.1 | SUSE-SU-2017:1774-1 |
| SLES 12 SP1 | qemu | 2.3.1-33.3.3 | SUSE-SU-2017:2946-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | qemu | 2.6.2-41.16.1 | SUSE-SU-2017:1774-1 |
| SLES for SAP 12 SP1 | qemu | 2.3.1-33.3.3 | SUSE-SU-2017:2946-1 |
| SUSE OpenStack Cloud 6 | qemu | 2.3.1-33.3.3 | SUSE-SU-2017:2946-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu | 6.1.0-32.1 | openSUSE-SU-2024:11287-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | qemu +12 | 15:3.0.0-1.el7 | ELSA-2019-4585, ELSA-2018-4289, ELSA-2018-4285 |
Advisories 10
- RHSA-2017:2408 Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DLA-1497-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3289-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:1774-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11287-1 qemu-6.1.0-32.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2017:2946-1 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-2024 QEMU: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Sep 2, 2024
- ELSA-2019-4585 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 15, 2019
- ELSA-2018-4289 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 28, 2018
- ELSA-2018-4285 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 20, 2018
References
- [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update mailing-list
- [qemu-devel] 20170428 [PATCH] input: limit kbd queue depth mailing-list
- GLSA-201706-03 vendor-advisory
- [oss-security] 20170503 CVE-2017-8379 Qemu: input: host memory lekage via keyboard mailing-list
- RHSA-2017:2408 vendor-advisory
- 98277 vdb-entry