The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade qemuUpgrade qemu-kvm | Mar 31, 2017 | Oct 5, 2016 |
| Gentoo Linux | — | Upgrade app-emulation/qemu. | Oct 30, 2017 | Oct 5, 2016 |
| Huawei Euleros 2_0_sp2 | — | Upgrade qemu-kvm-commonUpgrade qemu-imgUpgrade qemu-kvm | Dec 4, 2019 | Oct 5, 2016 |
| Huawei Euleros 2_0_sp3 | — | Upgrade qemu-imgUpgrade qemu-kvm-commonUpgrade qemu-kvm | Apr 16, 2020 | Oct 5, 2016 |
| Huawei Euleros 2_0_sp5 | — | Upgrade qemu-imgUpgrade qemu-kvmUpgrade qemu-kvm-common | Nov 19, 2019 | Oct 5, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Sep 21, 2016 |
| Suse | — | Upgrade qemu-guest-agentUpgrade qemuUpgrade qemu-ppcUpgrade xen-develUpgrade qemu-hw-display-virtio-gpu-pciUpgrade qemu-block-rbdUpgrade qemu-ui-gtkUpgrade qemu-armUpgrade qemu-vgabiosUpgrade qemu-langUpgrade xen-tools-xendomains-wait-diskUpgrade qemu-ui-spice-appUpgrade qemu-s390xUpgrade qemu-audio-paUpgrade qemu-block-iscsiUpgrade qemu-hw-s390x-virtio-gpu-ccwUpgrade xen-toolsUpgrade qemu-microvmUpgrade qemu-audio-ossUpgrade qemu-ui-spice-coreUpgrade qemu-sgabiosUpgrade qemu-hw-usb-redirectUpgrade qemu-ui-openglUpgrade qemu-toolsUpgrade kvmUpgrade qemu-hw-display-virtio-gpuUpgrade qemu-hw-display-qxlUpgrade qemu-hw-display-virtio-vgaUpgrade qemu-chardev-spiceUpgrade qemu-block-sshUpgrade xen-libs-32bitUpgrade xen-tools-domUUpgrade qemu-ksmUpgrade xen-kmp-defaultUpgrade qemu-seabiosUpgrade xenUpgrade qemu-audio-spiceUpgrade qemu-block-curlUpgrade qemu-s390Upgrade qemu-ipxeUpgrade xen-doc-pdfUpgrade qemu-kvmUpgrade qemu-chardev-baumUpgrade qemu-skibootUpgrade qemu-ui-cursesUpgrade xen-doc-htmlUpgrade xen-kmp-traceUpgrade xen-libsUpgrade xen-kmp-paeUpgrade qemu-x86Upgrade qemu-audio-alsa | Nov 23, 2016 | Oct 5, 2016 |
| Ubuntu | — | Upgrade qemu-systemUpgrade qemu-kvmUpgrade qemu-system-armUpgrade qemu-system-s390xUpgrade qemu-system-sparcUpgrade qemu-system-ppcUpgrade qemu-system-x86Upgrade qemu-system-aarch64Upgrade qemu-system-mipsUpgrade qemu-system-misc | Nov 9, 2016 | Oct 5, 2016 |
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