Description
In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference.
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 | 1:6.0+dfsg-3 | — |
| Debian 13 | qemu | 1:6.0+dfsg-3 | — |
| Debian 12 | qemu | 1:6.0+dfsg-3 | — |
| Debian 10 | qemu | 1:3.1+dfsg-8+deb10u9 | DLA-3099-1 |
| Debian 9 | qemu | 1:2.8+dfsg-6+deb9u13 | DLA-2560-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.17 | USN-5010-1 |
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.37 | USN-5010-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.51+esm4 | — |
| Ubuntu Pro 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.47+esm6 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | qemu | 4.2.1-11.16.3 | SUSE-SU-2021:1243-1 |
| SLES 15 SP1 | qemu | 3.1.1.1-9.24.3 | SUSE-SU-2021:1245-1 |
| SLES 15 | qemu | 2.11.2-9.43.1 | SUSE-SU-2021:1244-1 |
| SLES 12 SP5 | qemu | 3.1.1.1-48.2 | SUSE-SU-2021:1242-1 |
| SLES 12 SP4 | qemu | 2.11.2-5.29.1 | SUSE-SU-2021:1241-1 |
Show 21 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | qemu | 2.9.1-6.47.1 | SUSE-SU-2021:1240-1 |
| SLES 12 SP2 | qemu | 2.6.2-41.62.1 | SUSE-SU-2021:1305-1 |
| SLES 11 SP4 | kvm | 1.4.2-60.37.1 | SUSE-SU-2021:14772-1 |
| SLES for SAP 15 SP1 | qemu | 3.1.1.1-9.24.3 | SUSE-SU-2021:1245-1 |
| SLES for SAP 15 | qemu | 2.11.2-9.43.1 | SUSE-SU-2021:1244-1 |
| SLES for SAP 12 SP5 | qemu | 3.1.1.1-48.2 | SUSE-SU-2021:1242-1 |
| SLES for SAP 12 SP4 | qemu | 2.11.2-5.29.1 | SUSE-SU-2021:1241-1 |
| SLES for SAP 12 SP3 | qemu | 2.9.1-6.47.1 | SUSE-SU-2021:1240-1 |
| SLE Micro 5.0 | qemu | 4.2.1-11.16.3 | SUSE-SU-2021:1243-1 |
| SLE HPC 15 SP1 | qemu | 3.1.1.1-9.24.3 | SUSE-SU-2021:1245-1 |
| SLE HPC 15 | qemu | 2.11.2-9.43.1 | SUSE-SU-2021:1244-1 |
| SUSE OpenStack Cloud Crowbar 9 | qemu | 2.11.2-5.29.1 | SUSE-SU-2021:1241-1 |
| SUSE OpenStack Cloud Crowbar 8 | qemu | 2.9.1-6.47.1 | SUSE-SU-2021:1240-1 |
| SUSE OpenStack Cloud 9 | qemu | 2.11.2-5.29.1 | SUSE-SU-2021:1241-1 |
| SUSE OpenStack Cloud 8 | qemu | 2.9.1-6.47.1 | SUSE-SU-2021:1240-1 |
| SUSE Manager Server 4.0 | qemu | 3.1.1.1-9.24.3 | SUSE-SU-2021:1245-1 |
| SUSE Manager Retail Branch Server 4.0 | qemu | 3.1.1.1-9.24.3 | SUSE-SU-2021:1245-1 |
| SUSE Manager Proxy 4.0 | qemu | 3.1.1.1-9.24.3 | SUSE-SU-2021:1245-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kvm | 1.4.2-53.41.1 | SUSE-SU-2021:14774-1 |
| SUSE HPE Helion OpenStack 8 | qemu | 2.9.1-6.47.1 | SUSE-SU-2021:1240-1 |
| SUSE Enterprise Storage 6 | qemu | 3.1.1.1-9.24.3 | SUSE-SU-2021:1245-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | qemu +2 | 4.2.1-lp152.9.12.1 | openSUSE-SU-2021:0600-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qemu | 5.0.0-r0 | — |
| Alpine v3.23 | qemu | 5.0.0-r0 | — |
| Alpine v3.22 | qemu | 5.0.0-r0 | — |
| Alpine v3.21 | qemu | 5.0.0-r0 | — |
| Alpine v3.20 | qemu | 5.0.0-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | qemu | 5.0.0-r0 | — |
| Alpine v3.18 | qemu | 5.0.0-r0 | — |
| Alpine v3.17 | qemu | 5.0.0-r0 | — |
| Alpine v3.16 | qemu | 5.0.0-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | hivex +4 | 1.3.18-20.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | libguestfs-winsupport | 8.2-1.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | libiscsi +2 | 1.18.0-8.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | libnbd +3 | 1.2.2-1.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | libvirt +29 | 5.7.0-31.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | libvirt-dbus | 1.3.0-2.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | nbdkit +13 | 1.16.2-4.0.1.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | netcf +2 | 0.2.8-12.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | perl-Sys-Virt | 4.5.0-5.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | qemu-img +9 | 15:4.2.1-11.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | seabios +2 | 1.13.0-2.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | sgabios +1 | 1:0.20170427git-3.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | supermin +1 | 5.1.19-10.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 8 | virt-dib +23 | 1:1.40.2-25.0.1.module+el8.4.0+20319+6eb4347c | ELSA-2021-9568 |
| Oracle Linux 7 | qemu +12 | 15:4.2.1-9.el7 | ELSA-2021-9285 |
Advisories 16
- WID-SEC-2022-1268 QEMU: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 29, 2026
- USN-5010-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3099-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2560-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2021:1305-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1240-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:14772-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1243-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0600-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1245-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1241-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:14774-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1242-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1244-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2021-9568 Important: virt:kvm_utils security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Dec 1, 2021
- ELSA-2021-9285 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 6, 2021
References
- https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg09961.html
- http://www.openwall.com/lists/oss-security/2020/07/02/1
- [debian-lts-announce] 20210218 [SECURITY] [DLA 2560-1] qemu security update mailing-list
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update mailing-list