A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version >= v5.0. Virtio-fs is meant to share a host file system directory with a guest via virtio-fs device. If the guest opens the maximum number of file descriptors under the shared directory, a denial of service may occur. This flaw allows a guest user/process to cause this denial of service on the host.
CVSS Details
- CVSS 3.1 Base Score: 3.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | debian-upgrade-qemu | Jul 30, 2024 | May 4, 2020 | |
| Gentoo Linux | gentoo-linux-upgrade-app-emulation-qemu | Nov 12, 2020 | May 4, 2020 | |
| Redhat_linux | — | no-fix-redhat-rpm-package | Jul 9, 2025 | May 4, 2020 |
| Suse | — | suse-upgrade-qemususe-upgrade-qemu-armsuse-upgrade-qemu-audio-alsasuse-upgrade-qemu-audio-pasuse-upgrade-qemu-audio-spicesuse-upgrade-qemu-block-curlsuse-upgrade-qemu-block-iscsisuse-upgrade-qemu-block-rbdsuse-upgrade-qemu-block-sshsuse-upgrade-qemu-chardev-baumsuse-upgrade-qemu-chardev-spicesuse-upgrade-qemu-guest-agentsuse-upgrade-qemu-hw-display-qxlsuse-upgrade-qemu-hw-display-virtio-gpususe-upgrade-qemu-hw-display-virtio-gpu-pcisuse-upgrade-qemu-hw-display-virtio-vgasuse-upgrade-qemu-hw-s390x-virtio-gpu-ccwsuse-upgrade-qemu-hw-usb-redirectsuse-upgrade-qemu-ipxesuse-upgrade-qemu-ksmsuse-upgrade-qemu-kvmsuse-upgrade-qemu-langsuse-upgrade-qemu-ppcsuse-upgrade-qemu-s390xsuse-upgrade-qemu-seabiossuse-upgrade-qemu-sgabiossuse-upgrade-qemu-skibootsuse-upgrade-qemu-toolssuse-upgrade-qemu-ui-cursessuse-upgrade-qemu-ui-gtksuse-upgrade-qemu-ui-openglsuse-upgrade-qemu-ui-spice-appsuse-upgrade-qemu-ui-spice-coresuse-upgrade-qemu-vgabiossuse-upgrade-qemu-x86 | Feb 4, 2022 | May 4, 2020 |
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