Description
qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.
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 | 1:3.1+dfsg-1 | — |
| Debian 13 | qemu | 1:3.1+dfsg-1 | — |
| Debian 12 | qemu | 1:3.1+dfsg-1 | — |
| Debian 9 | qemu | 1:2.8+dfsg-6+deb9u5 | DSA-4338-1 |
| Debian 8 | qemu | 1:2.1+dfsg-12+deb8u8 | DLA-1599-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.8 | USN-3826-1 |
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.33 | USN-3826-1 |
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.44 | USN-3826-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | qemu-img-ma +7 | 10:2.12.0-33.el7 | RHSA-2019:2553, RHSA-2019:2166 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhev Manager 4 | qemu-img-rhev +3 | 10:2.12.0-33.el7 | RHSA-2019:2553 |
| Red Hat OpenStack 14 | qemu-img-rhev +3 | 10:2.12.0-33.el7 | RHSA-2019:2425 |
| Red Hat OpenStack 13 | qemu-img-rhev +3 | 10:2.12.0-33.el7 | RHSA-2019:2425 |
| Red Hat OpenStack 10 | qemu-img-rhev +3 | 10:2.12.0-33.el7 | RHSA-2019:2425 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | qemu | 2.11.2-9.12.2 | SUSE-SU-2018:3927-1 |
| SLES 12 SP4 | qemu | 2.11.2-5.5.1 | SUSE-SU-2018:4185-1 |
| SLES 12 SP4 | xen | 4.11.1_02-2.3.1 | SUSE-SU-2019:0003-1 |
| SLES 12 SP3 | qemu | 2.9.1-6.22.3 | SUSE-SU-2018:4129-1 |
| SLES 12 SP3 | xen | 4.9.3_03-3.44.2 | SUSE-SU-2018:3490-1 |
| SLES 12 SP2 | qemu | 2.6.2-41.46.2 | SUSE-SU-2018:4237-1 |
| SLES 12 SP2 | xen | 4.7.6_05-43.42.1 | SUSE-SU-2018:3332-1 |
| SLES 12 SP1 | qemu | 2.3.1-33.17.1 | SUSE-SU-2018:3973-1 |
| SLES 12 SP1 | xen | 4.5.5_28-22.58.1 | SUSE-SU-2019:0825-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | qemu | 2.0.2-48.46.2 | SUSE-SU-2018:3912-1 |
| SLES 12 | xen | 4.4.4_40-22.77.1 | SUSE-SU-2019:0827-1 |
| SLES 11 SP4 | kvm | 1.4.2-60.18.2 | SUSE-SU-2018:3975-1 |
| SLES 11 SP4 | xen | 4.4.4_38-61.40.1 | SUSE-SU-2019:13921-1 |
| SLES 11 SP3 | kvm | 1.4.2-53.26.2 | SUSE-SU-2018:3987-1 |
| SLES for SAP 12 SP4 | qemu | 2.11.2-5.5.1 | SUSE-SU-2018:4185-1 |
| SLES for SAP 12 SP4 | xen | 4.11.1_02-2.3.1 | SUSE-SU-2019:0003-1 |
| SLES for SAP 12 SP3 | qemu | 2.9.1-6.22.3 | SUSE-SU-2018:4129-1 |
| SLES for SAP 12 SP3 | xen | 4.9.3_03-3.44.2 | SUSE-SU-2018:3490-1 |
| SLES for SAP 12 SP2 | qemu | 2.6.2-41.46.2 | SUSE-SU-2018:4237-1 |
| SLES for SAP 12 SP2 | xen | 4.7.6_05-43.42.1 | SUSE-SU-2018:3332-1 |
| SLES for SAP 12 SP1 | qemu | 2.3.1-33.17.1 | SUSE-SU-2018:3973-2 |
| SLES for SAP 12 SP1 | xen | 4.5.5_28-22.58.1 | SUSE-SU-2019:0825-1 |
| SLES for SAP 11 SP4 | kvm | 1.4.2-60.18.2 | SUSE-SU-2018:3975-1 |
| SLES for SAP 11 SP4 | xen | 4.4.4_38-61.40.1 | SUSE-SU-2019:13921-1 |
| SUSE OpenStack Cloud 7 | qemu | 2.6.2-41.46.2 | SUSE-SU-2018:4237-1 |
| SUSE OpenStack Cloud 7 | xen | 4.7.6_05-43.42.1 | SUSE-SU-2018:3332-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kvm | 1.4.2-53.26.2 | SUSE-SU-2018:3987-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | xen | 4.2.5_21-45.30.1 | SUSE-SU-2019:14011-1 |
| SUSE Enterprise Storage 4 | qemu | 2.6.2-41.46.2 | SUSE-SU-2018:4237-1 |
| SUSE Enterprise Storage 4 | xen | 4.7.6_05-43.42.1 | SUSE-SU-2018:3332-1 |
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 | ivshmem-tools +2 | 15:3.0.0-1.el7 | ELSA-2019-4585, ELSA-2018-4285 |
| Oracle Linux 7 | qemu +9 | 12:2.9.0-17.el7 | ELSA-2019-4585, ELSA-2018-4285, ELSA-2018-4262 |
Advisories 27
- RHSA-2019:2166 Red Hat Security Advisory: qemu-kvm-ma security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:2553 Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2019:2425 Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-3826-1 qemu vulnerabilities Ubuntu Security Notices (USN) · May 4, 2026
- DSA-4338-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1599-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:0003-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3973-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4237-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:14011-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4129-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:13921-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3987-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3332-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3490-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3975-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0825-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0827-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3927-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4185-1 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-2018:3912-1 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2018:3973-2 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-2001 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-2018-4285 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 20, 2018
- ELSA-2018-4262 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 29, 2018
References
- [oss-security] 20181008 Qemu: integer overflow issues mailing-list
- DSA-4338 vendor-advisory
- [qemu-devel] 20180926 [PULL 24/25] net: ignore packet size greater than INT_MAX mailing-list
- USN-3826-1 vendor-advisory
- [debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update mailing-list
- https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.html
- RHSA-2019:2166 vendor-advisory
- RHSA-2019:2425 vendor-advisory
- RHSA-2019:2553 vendor-advisory