Description
A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | qemu | — | 7.2.0 |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.13 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.14 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.15 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.16 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.17 | — | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 Advanced Virtualization | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
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 | 1:9.0.2+ds-3 | — |
| Debian 13 | qemu | 1:9.0.2+ds-3 | — |
| Debian 12 | qemu | 1:7.2+dfsg-7+deb12u8 | — |
| Debian 11 | qemu | 1:5.2+dfsg-11+deb11u5 | DLA-4296-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | qemu | 1:8.2.2+ds-0ubuntu1.10 | USN-7744-1 |
| Ubuntu 22.04 LTS | qemu | 1:6.2+dfsg-2ubuntu6.27 | USN-7744-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | qemu | 1:4.2-3ubuntu6.30+esm2 | USN-8412-2 |
| Ubuntu Pro 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.42+esm6 | USN-8412-2 |
| 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 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | qemu-img +19 | 17:9.0.0-10.el9_5 | RHSA-2024:9136 |
| RHEL 8 | SLOF | 20210217-2.module+el8.10.0+20141+6faa2812 | RHSA-2024:6964 |
| RHEL 8 | hivex +6 | 1.3.18-23.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | libguestfs-winsupport | 8.10-1.module+el8.10.0+19908+9938c7c9 | RHSA-2024:6964 |
| RHEL 8 | libiscsi +2 | 1.18.0-8.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | libnbd +6 | 1.6.0-6.module+el8.10.0+22250+3c790083 | RHSA-2024:6964 |
| RHEL 8 | libtpms +1 | 0.9.1-2.20211126git1ff6fe1f43.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | libvirt +27 | 8.0.0-23.2.module+el8.10.0+21972+d7867348 | RHSA-2024:6964 |
| RHEL 8 | libvirt-dbus | 1.3.0-2.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | libvirt-python +1 | 8.0.0-2.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | nbdkit +18 | 1.24.0-5.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | netcf +2 | 0.2.8-12.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | perl-Sys-Virt | 8.0.0-1.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | qemu-img +14 | 15:6.2.0-53.module+el8.10.0+22268+f82ccd96 | RHSA-2024:6964 |
| RHEL 8 | seabios +2 | 1.16.0-4.module+el8.9.0+19570+14a90618 | RHSA-2024:6964 |
| RHEL 8 | sgabios +1 | 1:0.20170427git-3.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | supermin +1 | 5.2.1-2.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | swtpm +4 | 0.7.0-4.20211109gitb79fd91.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | virt-dib +24 | 1:1.44.0-9.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
| RHEL 8 | virt-v2v +3 | 1:1.42.0-22.module+el8.9.0+18724+20190c23 | RHSA-2024:6964 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | qemu-img +19 | 17:8.2.0-11.el9_4.8 | RHSA-2024:9912 |
| RHEL 9.2 EUS | qemu-img +18 | 17:7.2.0-14.el9_2.14 | RHSA-2024:7408 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | qemu-img +19 | 17:9.0.0-10.el9_5 | ALSA-2024:9136 |
| AlmaLinux 8 | SLOF | 20210217-2.module_el8.10.0+3768+dfd76e10 | ALSA-2024:6964 |
| AlmaLinux 8 | hivex +6 | 1.3.18-23.module_el8.6.0+2880+7d9e3703 | ALSA-2024:6964 |
| AlmaLinux 8 | libguestfs-winsupport | 8.10-1.module_el8.10.0+3768+dfd76e10 | ALSA-2024:6964 |
| AlmaLinux 8 | libiscsi +2 | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2024:6964 |
| AlmaLinux 8 | libnbd +6 | 1.6.0-6.module_el8.10.0+3897+eb84924d | ALSA-2024:6964 |
| AlmaLinux 8 | libtpms +1 | 0.9.1-2.20211126git1ff6fe1f43.module_el8.9.0+3659+9c8643f3 | ALSA-2024:6964 |
| AlmaLinux 8 | libvirt +25 | 8.0.0-23.2.module_el8.10.0+3867+f3f9981a | ALSA-2024:6964 |
| AlmaLinux 8 | libvirt-daemon-driver-storage +1 | 8.0.0-23.2.module_el8.10.0+3869+b8959270 | ALSA-2024:6964 |
| AlmaLinux 8 | libvirt-dbus | 1.3.0-2.module_el8.6.0+2880+7d9e3703 | ALSA-2024:6964 |
| AlmaLinux 8 | nbdkit +18 | 1.24.0-5.module_el8.8.0+3485+7cffc4a3 | ALSA-2024:6964 |
| AlmaLinux 8 | netcf +2 | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2024:6964 |
| AlmaLinux 8 | perl-Sys-Virt | 8.0.0-1.module_el8.6.0+2880+7d9e3703 | ALSA-2024:6964 |
| AlmaLinux 8 | python3-libvirt | 8.0.0-2.module_el8.7.0+3346+68867adb | ALSA-2024:6964 |
| AlmaLinux 8 | qemu-img +14 | 15:6.2.0-53.module_el8.10.0+3897+eb84924d | ALSA-2024:6964 |
| AlmaLinux 8 | seabios +2 | 1.16.0-4.module_el8.9.0+3659+9c8643f3 | ALSA-2024:6964 |
| AlmaLinux 8 | sgabios +1 | 1:0.20170427git-3.module_el8.6.0+2880+7d9e3703 | ALSA-2024:6964 |
| AlmaLinux 8 | supermin +1 | 5.2.1-2.module_el8.7.0+3346+68867adb | ALSA-2024:6964 |
| AlmaLinux 8 | swtpm +4 | 0.7.0-4.20211109gitb79fd91.module_el8.7.0+3346+68867adb | ALSA-2024:6964 |
| AlmaLinux 8 | virt-dib +24 | 1:1.44.0-9.module_el8.7.0+3493+5ed0bd1c.alma | ALSA-2024:6964 |
| AlmaLinux 8 | virt-v2v +3 | 1:1.42.0-22.module_el8.9.0+3659+9c8643f3 | ALSA-2024:6964 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | qemu-kvm | 7:9.0.0-10.el9_5.2 | RLSA-2024:9136 |
| Rocky Linux 8 | hivex | 1.3.18-23.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | libguestfs | 1:1.44.0-9.module+el8.10.0+1590+a67ab969.rocky | RLSA-2024:6964 |
| Rocky Linux 8 | libguestfs-winsupport | 8.10-1.module+el8.10.0+1451+358d0d76 | RLSA-2024:6964 |
| Rocky Linux 8 | libiscsi | 1.18.0-8.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | libnbd | 1.6.0-6.module+el8.10.0+1870+0a714c9f | RLSA-2024:6964 |
| Rocky Linux 8 | libtpms | 0.9.1-2.20211126git1ff6fe1f43.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | libvirt | 8.0.0-23.2.module+el8.10.0+1835+43f01cbb | RLSA-2024:6964 |
| Rocky Linux 8 | libvirt-dbus | 1.3.0-2.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | libvirt-python | 8.0.0-2.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | nbdkit | 1.24.0-5.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | netcf | 0.2.8-12.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | perl-Sys-Virt | 8.0.0-1.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | qemu-kvm | 5:6.2.0-53.module+el8.10.0+1870+0a714c9f | RLSA-2024:6964 |
| Rocky Linux 8 | seabios | 1.16.0-4.module+el8.9.0+1408+7b966129 | RLSA-2024:6964 |
| Rocky Linux 8 | sgabios | 1:0.20170427git-3.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | supermin | 5.2.1-2.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | swtpm | 0.7.0-4.20211109gitb79fd91.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
| Rocky Linux 8 | virt-v2v | 1:1.42.0-22.module+el8.10.0+1590+a67ab969 | RLSA-2024:6964 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | qemu +1 | 8.2.6-150600.3.9.1 | SUSE-SU-2024:4094-1, SUSE-SU-2024:3744-1, SUSE-SU-2024:2983-1 |
| SLES 15 SP5 | qemu | 7.1.0-150500.49.24.1 | SUSE-SU-2024:3948-1 |
| SLES 15 SP4 | qemu | 6.2.0-150400.37.37.3 | SUSE-SU-2024:4304-1 |
| SLES 15 SP3 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SLES 12 SP5 | qemu | 3.1.1.1-78.1 | SUSE-SU-2025:02530-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | qemu | 6.2.0-150400.37.37.3 | SUSE-SU-2024:4304-1 |
| SLES for SAP 15 SP3 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SLE Micro 6.0 | qemu | 8.2.6-1.1 | SUSE-SU-2025:20076-1, SUSE-SU-2025:20036-1 |
| SLE Micro 5.5 | qemu | 7.1.0-150500.49.24.1 | SUSE-SU-2024:3948-1 |
| SLE Micro 5.4 | qemu | 6.2.0-150400.37.37.3 | SUSE-SU-2024:4304-1 |
| SLE Micro 5.3 | qemu | 6.2.0-150400.37.37.3 | SUSE-SU-2024:4304-1 |
| SLE Micro 5.2 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SLE Micro 5.1 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SLE HPC 15 SP4 | qemu | 6.2.0-150400.37.37.3 | SUSE-SU-2024:4304-1 |
| SLE HPC 15 SP3 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SUSE Manager Server 4.3 | qemu | 6.2.0-150400.37.37.3 | SUSE-SU-2024:4304-1 |
| SUSE Manager Proxy 4.3 | qemu | 6.2.0-150400.37.37.3 | SUSE-SU-2024:4304-1 |
| SUSE Enterprise Storage 7.1 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu | 9.1.0-2.1 | openSUSE-SU-2024:14411-1 |
| openSUSE Leap 15.6 | qemu +1 | 8.2.6-150600.3.9.1 | SUSE-SU-2024:4094-1, SUSE-SU-2024:2983-1 |
| openSUSE Leap 15.5 | qemu | 7.1.0-150500.49.24.1 | SUSE-SU-2024:3948-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | qemu | 7.1.0-150500.49.24.1 | SUSE-SU-2024:3948-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | qemu | 8.2.0-19 | — |
| Azure Linux 2 (CBL-Mariner) | qemu | 6.2.0-26 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | qemu-img +18 | 17:9.0.0-10.el9_5 | ELSA-2024-9136 |
| Oracle Linux 8 | hivex +6 | 1.3.18-23.module+el8.9.0+90075+85334608 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | libguestfs-winsupport | 8.10-1.module+el8.10.0+90308+7c659588 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | libiscsi +2 | 1.18.0-8.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | libnbd +6 | 1.6.0-6.module+el8.10.0+90410+bcde3bf4 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | libtpms +1 | 0.9.1-2.20211126git1ff6fe1f43.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | libvirt +27 | 8.0.0-23.2.0.1.module+el8.10.0+90363+955e9a81 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | libvirt-client-qemu | 9.0.0-7.module+el8.10.0+90413+d8f5961d | ELSA-2024-12792 |
| Oracle Linux 8 | libvirt-dbus | 1.3.0-2.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | nbdkit +18 | 1.24.0-5.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | netcf +2 | 0.2.8-12.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | perl-Sys-Virt | 8.0.0-1.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | python3-libvirt | 8.0.0-2.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | qemu-img +14 | 15:6.2.0-53.module+el8.10.0+90410+bcde3bf4 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | qemu-virtiofsd | 15:7.2.0-16.module+el8.10.0+90413+d8f5961d | ELSA-2024-12792 |
| Oracle Linux 8 | seabios +2 | 1.16.0-4.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | sgabios +1 | 1:0.20170427git-3.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | supermin +1 | 5.2.1-2.0.1.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | swtpm +4 | 0.7.0-4.20211109gitb79fd91.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | virt-dib +24 | 1:1.44.0-9.0.2.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
| Oracle Linux 8 | virt-v2v +3 | 1:1.42.0-22.module+el8.9.0+90052+d3bf71d8 | ELSA-2024-12792, ELSA-2024-6964 |
Advisories 25
- ALSA-2024:9136 Moderate: qemu-kvm security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:6964 Moderate: virt:rhel and virt-devel:rhel security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:9912 Red Hat Security Advisory: qemu-kvm security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2024:9136 Red Hat Security Advisory: qemu-kvm security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2024:7408 Red Hat Security Advisory: qemu-kvm security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2024:6964 Red Hat Security Advisory: virt:rhel and virt-devel:rhel security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- WID-SEC-2024-1750 QEMU: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 29, 2026
- USN-8412-2 qemu regression Ubuntu Security Notices (USN) · Jun 17, 2026
- USN-7744-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2025:02530-1 Security update for qemu SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20076-1 Security update for qemu SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20036-1 Security update for qemu SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4296-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:9136 Moderate: qemu-kvm security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2024:2983-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3744-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4304-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4094-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3948-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14411-1 qemu-9.1.0-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2024:6964 Moderate: virt:rhel and virt-devel:rhel security update Rocky Linux Security Advisories · May 7, 2025
- SUSE-SU-2025:0692-1 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2024-9136 Moderate: qemu-kvm security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 14, 2024
- ELSA-2024-12792 Moderate: virt:kvm_utils3 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 21, 2024
- ELSA-2024-6964 Moderate: virt:ol and virt-devel:ol security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 24, 2024
References
- RHSA-2024:10518 vendor-advisory
- RHSA-2024:10528 vendor-advisory
- RHSA-2024:10813 vendor-advisory
- RHSA-2024:6811 vendor-advisory
- RHSA-2024:6818 vendor-advisory
- RHSA-2024:6964 vendor-advisory
- RHSA-2024:7408 vendor-advisory
- RHSA-2024:8991 vendor-advisory
- RHSA-2024:9136 vendor-advisory
- RHSA-2024:9620 vendor-advisory
- RHSA-2024:9912 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2024-7409 vdb-entry
- RHBZ#2302487 issue-tracking