Description
qemu/qemu_monitor.c in libvirt allows attackers to cause a denial of service (memory consumption) via a large QEMU reply.
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 | libvirt | 4.0.0-1 | — |
| Debian 13 | libvirt | 4.0.0-1 | — |
| Debian 12 | libvirt | 4.0.0-1 | — |
| Debian 7 | libvirt | 0.9.12.3-1+deb7u3 | DLA-1315-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | libvirt | 1.3.1-1ubuntu10.19 | USN-3576-1 |
| Ubuntu 14.04 LTS | libvirt | 1.2.2-0ubuntu13.1.26 | USN-3576-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | libvirt +29 | 3.9.0-14.el7_5.4 | RHSA-2018:1396 |
| RHEL 6 | libvirt +4 | 0.10.2-64.el6 | RHSA-2018:1929 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Gluster Storage 3 | libvirt-lock-sanlock | 0.10.2-64.el6 | RHSA-2018:1929 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | libvirt | 3.3.0-5.13.1 | SUSE-SU-2018:0279-1 |
| SLES 12 SP2 | libvirt | 2.0.0-27.29.1 | SUSE-SU-2018:0385-1 |
| SLES 12 SP1 | libvirt | 1.2.18.4-22.3.1 | SUSE-SU-2018:2082-1 |
| SLES 12 | libvirt | 1.2.5-27.13.1 | SUSE-SU-2018:2141-1 |
| SLES 11 SP4 | libvirt | 1.2.5-23.6.1 | SUSE-SU-2018:0838-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP3 | libvirt | 1.0.5.9-21.5.1 | SUSE-SU-2018:1295-1 |
| SLES for SAP 12 SP3 | libvirt | 3.3.0-5.13.1 | SUSE-SU-2018:0279-1 |
| SLES for SAP 12 SP2 | libvirt | 2.0.0-27.29.1 | SUSE-SU-2018:0385-1 |
| SLES for SAP 12 SP1 | libvirt | 1.2.18.4-22.3.1 | SUSE-SU-2018:2082-1 |
| SLES for SAP 11 SP4 | libvirt | 1.2.5-23.6.1 | SUSE-SU-2018:0838-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | libvirt | 1.0.5.9-21.5.1 | SUSE-SU-2018:1295-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libvirt | 7.7.0-2.1 | openSUSE-SU-2024:11008-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | libvirt +29 | 3.9.0-14.amzn2.6 | ALAS2-2018-1049 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | libvirt +29 | 3.9.0-14.el7_5.4 | ELSA-2018-1396 |
Advisories 13
- RHSA-2018:1929 Red Hat Security Advisory: libvirt security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2018:1396 Red Hat Security Advisory: libvirt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-3576-1 libvirt vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-1315-1 libvirt - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2018:0385-1 Security update for libvirt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2082-1 Security update for libvirt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2141-1 Security update for libvirt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0279-1 Security update for libvirt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1295-1 Security update for libvirt SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11008-1 libvirt-7.7.0-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0838-1 Security update for libvirt SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2018-1049 Low: libvirt security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 23, 2025
- ELSA-2018-1396 Low: libvirt security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 14, 2018
References
- RHSA-2018:1396 vendor-advisory
- DSA-4137 vendor-advisory
- [libvir-list] 20180116 [PATCH] qemu: avoid denial of service reading from QEMU monitor (CVE-2018-xxxx) mailing-list
- RHSA-2018:1929 vendor-advisory
- 102825 vdb-entry
- [debian-lts-announce] 20180324 [SECURITY] [DLA 1315-1] libvirt security update mailing-list