A flaw was found in QEMU. An assertion failure was present in the update_sctp_checksum() function in hw/net/net_tx_pkt.c when trying to calculate the checksum of a short-sized fragmented packet. This flaw allows a malicious guest to crash QEMU and cause a denial of service condition.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade qemu | Jul 27, 2026 | Jul 27, 2026 |
| Oracle_linux | — | Upgrade qemu-pr-helperUpgrade ruby-hivexUpgrade libvirt-docsUpgrade perl-hivexUpgrade swtpmUpgrade hivexUpgrade libguestfs-man-pages-jaUpgrade netcfUpgrade netcf-develUpgrade qemu-kvm-ui-openglUpgrade nbdkit-nbd-pluginUpgrade qemu-kvm-audio-paUpgrade nbdkit-tar-filterUpgrade swtpm-develUpgrade libvirt-daemon-driver-storage-coreUpgrade libvirt-daemon-driver-storage-logicalUpgrade virt-v2vUpgrade qemu-kvm-block-rbdUpgrade nbdkit-tmpdisk-pluginUpgrade qemu-imgUpgrade nbdkit-bash-completionUpgrade qemu-kvm-block-sshUpgrade libguestfs-develUpgrade libvirt-daemon-driver-storage-diskUpgrade qemu-kvm-device-display-virtio-vgaUpgrade libvirt-daemon-driver-storage-scsiUpgrade libguestfs-toolsUpgrade libnbd-bash-completionUpgrade libvirt-develUpgrade libvirt-daemon-driver-interfaceUpgrade libguestfs-gfs2Upgrade virt-dibUpgrade virt-v2v-man-pages-jaUpgrade nbdkit-serverUpgrade perl-Sys-VirtUpgrade libvirt-daemon-driver-storage-iscsi-directUpgrade libvirt-daemon-config-nwfilterUpgrade qemu-kvm-device-usb-redirectUpgrade superminUpgrade sgabiosUpgrade nbdkit-python-pluginUpgrade virt-v2v-man-pages-ukUpgrade python3-hivexUpgrade libguestfs-rsyncUpgrade seavgabios-binUpgrade qemu-kvm-commonUpgrade sgabios-binUpgrade qemu-kvm-block-iscsiUpgrade nbdkit-curl-pluginUpgrade qemu-virtiofsdUpgrade libvirt-daemon-driver-storage-mpathUpgrade nbdkitUpgrade libguestfs-xfsUpgrade nbdkit-example-pluginsUpgrade libvirt-daemon-driver-storageUpgrade nbdkit-ssh-pluginUpgrade nbdkit-vddk-pluginUpgrade libvirt-libsUpgrade libvirt-dbusUpgrade qemu-kvm-device-display-virtio-gpu-pciUpgrade libnbdUpgrade libvirt-daemon-driver-storage-iscsiUpgrade libguestfs-javaUpgrade libvirt-daemon-driver-storage-rbdUpgrade libguestfs-java-develUpgrade libguestfs-tools-cUpgrade qemu-kvm-coreUpgrade libvirt-daemon-driver-networkUpgrade nbdfuseUpgrade swtpm-tools-pkcs11Upgrade nbdkit-develUpgrade libvirt-lock-sanlockUpgrade libvirt-daemon-kvmUpgrade qemu-kvm-device-display-virtio-gpuUpgrade qemu-kvm-block-blkioUpgrade libvirt-daemon-driver-storage-glusterUpgrade libguestfs-bash-completionUpgrade python3-libnbdUpgrade netcf-libsUpgrade nbdkit-xz-filterUpgrade qemu-kvm-docsUpgrade ruby-libguestfsUpgrade libguestfs-applianceUpgrade qemu-kvm-block-glusterUpgrade nbdkit-linuxdisk-pluginUpgrade nbdkit-basic-pluginsUpgrade libvirt-clientUpgrade libiscsi-utilsUpgrade libguestfs-gobject-develUpgrade libguestfsUpgrade seabios-binUpgrade libvirt-daemon-driver-qemuUpgrade libvirt-daemon-config-networkUpgrade libtpms-develUpgrade virt-v2v-bash-completionUpgrade qemu-kvm-device-usb-hostUpgrade libiscsi-develUpgrade libnbd-develUpgrade libguestfs-inspect-iconsUpgrade libguestfs-gobjectUpgrade libguestfs-winsupportUpgrade qemu-kvm-ui-egl-headlessUpgrade libvirtUpgrade swtpm-libsUpgrade qemu-kvmUpgrade swtpm-toolsUpgrade libvirt-wiresharkUpgrade libtpmsUpgrade libguestfs-rescueUpgrade libguestfs-man-pages-ukUpgrade nbdkit-basic-filtersUpgrade nbdkit-gzip-filterUpgrade python3-libvirtUpgrade nbdkit-gzip-pluginUpgrade seabiosUpgrade libvirt-daemon-driver-nwfilterUpgrade lua-guestfsUpgrade libvirt-daemon-driver-secretUpgrade libvirt-daemon-driver-nodedevUpgrade supermin-develUpgrade qemu-kvm-block-curlUpgrade libvirt-nssUpgrade libvirt-daemonUpgrade libiscsiUpgrade perl-Sys-GuestfsUpgrade qemu-guest-agentUpgrade libguestfs-javadocUpgrade hivex-develUpgrade qemu-kvm-toolsUpgrade python3-libguestfsUpgrade nbdkit-tar-plugin | Oct 16, 2024 | Apr 8, 2024 |
| Redhat_linux | — | Upgrade qemu-kvm-block-blkioUpgrade qemu-kvm-ui-egl-headless-debuginfoUpgrade qemu-kvm-ui-openglUpgrade qemu-kvm-device-display-virtio-vgaUpgrade qemu-kvm-audio-pa-debuginfoUpgrade qemu-kvm-device-display-virtio-gpu-pci-debuginfoUpgrade qemu-kvm-block-rbd-debuginfoUpgrade qemu-kvm-device-display-virtio-gpu-ccwUpgrade qemu-imgUpgrade qemu-kvm-device-display-virtio-vga-debuginfoUpgrade qemu-kvmUpgrade qemu-kvm-device-usb-redirectUpgrade qemu-kvm-ui-egl-headlessUpgrade qemu-kvm-tools-debuginfoUpgrade qemu-img-debuginfoUpgrade qemu-kvm-core-debuginfoUpgrade qemu-kvm-common-debuginfoUpgrade qemu-kvm-commonUpgrade qemu-kvm-toolsUpgrade qemu-kvm-device-usb-hostUpgrade qemu-kvm-ui-dbus-debuginfoUpgrade qemu-kvm-device-display-virtio-gpu-ccw-debuginfoUpgrade qemu-kvm-coreUpgrade qemu-kvm-docsUpgrade qemu-kvm-ui-opengl-debuginfoUpgrade qemu-kvm-device-usb-redirect-debuginfoUpgrade qemu-kvm-device-usb-host-debuginfoUpgrade qemu-kvm-block-blkio-debuginfoUpgrade qemu-kvm-debugsourceUpgrade qemu-pr-helperUpgrade qemu-kvm-block-rbdUpgrade qemu-kvm-tests-debuginfoUpgrade qemu-kvm-audio-paUpgrade qemu-kvm-device-display-virtio-gpu-pciUpgrade qemu-kvm-device-display-virtio-gpuUpgrade qemu-pr-helper-debuginfoUpgrade qemu-kvm-block-curl-debuginfoUpgrade qemu-guest-agentUpgrade qemu-kvm-block-curlUpgrade qemu-kvm-debuginfoUpgrade qemu-kvm-audio-dbus-debuginfoUpgrade qemu-kvm-device-display-virtio-gpu-debuginfoUpgrade qemu-guest-agent-debuginfo | May 7, 2025 | Apr 10, 2024 |
| Rocky_linux | — | Upgrade qemu-kvm-block-curl-debuginfoUpgrade qemu-kvm-device-usb-redirectUpgrade qemu-kvm-audio-paUpgrade qemu-img-debuginfoUpgrade qemu-kvm-block-rbdUpgrade qemu-kvm-device-display-virtio-gpu-debuginfoUpgrade qemu-kvm-debuginfoUpgrade qemu-pr-helperUpgrade qemu-kvm-device-display-virtio-gpu-pciUpgrade qemu-kvm-device-display-virtio-vgaUpgrade qemu-kvm-device-usb-host-debuginfoUpgrade qemu-kvm-device-usb-redirect-debuginfoUpgrade qemu-kvm-block-curlUpgrade qemu-kvm-common-debuginfoUpgrade qemu-kvm-ui-egl-headlessUpgrade qemu-kvm-device-display-virtio-gpuUpgrade qemu-pr-helper-debuginfoUpgrade qemu-kvm-device-display-virtio-gpu-ccwUpgrade qemu-guest-agent-debuginfoUpgrade qemu-kvm-ui-egl-headless-debuginfoUpgrade qemu-guest-agentUpgrade qemu-kvm-commonUpgrade qemu-kvm-coreUpgrade qemu-kvm-audio-pa-debuginfoUpgrade qemu-kvm-core-debuginfoUpgrade qemu-kvm-toolsUpgrade qemu-kvm-docsUpgrade qemu-kvm-device-display-virtio-gpu-ccw-debuginfoUpgrade qemu-kvm-debugsourceUpgrade qemu-kvm-device-usb-hostUpgrade qemu-kvm-ui-openglUpgrade qemu-kvm-device-display-virtio-gpu-pci-debuginfoUpgrade qemu-kvmUpgrade qemu-imgUpgrade qemu-kvm-block-blkioUpgrade qemu-kvm-tools-debuginfoUpgrade qemu-kvm-block-blkio-debuginfoUpgrade qemu-kvm-device-display-virtio-vga-debuginfoUpgrade qemu-kvm-ui-opengl-debuginfoUpgrade qemu-kvm-block-rbd-debuginfo | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade qemu-vmsr-helperUpgrade qemu-hw-usb-smartcardUpgrade qemu-block-dmgUpgrade qemu-chardev-baumUpgrade qemu-ivshmem-toolsUpgrade qemuUpgrade qemu-SLOFUpgrade qemu-audio-paUpgrade qemu-linux-userUpgrade qemu-x86Upgrade qemu-ui-dbusUpgrade qemu-microvmUpgrade qemu-vgabiosUpgrade qemu-hw-usb-hostUpgrade qemu-audio-ossUpgrade qemu-ui-cursesUpgrade qemu-hw-display-qxlUpgrade qemu-hw-display-virtio-gpuUpgrade qemu-block-nfsUpgrade qemu-docUpgrade qemu-audio-pipewireUpgrade qemu-imgUpgrade qemu-ksmUpgrade qemu-accel-tcg-x86Upgrade qemu-langUpgrade qemu-hw-display-virtio-gpu-pciUpgrade qemu-block-curlUpgrade qemu-hw-usb-redirectUpgrade qemu-vhost-user-gpuUpgrade qemu-extraUpgrade qemu-ui-gtkUpgrade qemu-skibootUpgrade qemu-ipxeUpgrade qemu-ppcUpgrade qemu-guest-agentUpgrade qemu-audio-alsaUpgrade qemu-armUpgrade qemu-seabiosUpgrade qemu-pr-helperUpgrade qemu-toolsUpgrade qemu-s390xUpgrade qemu-block-sshUpgrade qemu-audio-spiceUpgrade qemu-audio-jackUpgrade qemu-audio-dbusUpgrade qemu-ui-spice-appUpgrade qemu-chardev-spiceUpgrade qemu-ui-spice-coreUpgrade qemu-hw-display-virtio-vgaUpgrade qemu-headlessUpgrade qemu-block-rbdUpgrade qemu-hw-s390x-virtio-gpu-ccwUpgrade qemu-ui-openglUpgrade qemu-spiceUpgrade qemu-block-iscsi | Oct 31, 2024 | Apr 10, 2024 |
| Ubuntu | — | Upgrade qemu-system-armUpgrade qemu-system-x86Upgrade qemu-system-ppcUpgrade qemu-system-sparcUpgrade qemu-systemUpgrade qemu-system-x86-xenUpgrade qemu-system-xenUpgrade qemu-system-miscUpgrade qemu-system-x86-microvmUpgrade qemu-system-s390xUpgrade qemu-system-mips | Nov 19, 2024 | Apr 10, 2024 |
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