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A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU. The new 'xattrmap' option may cause the 'security.capability' xattr in the guest to not drop on file write, potentially leading to a modified, privileged executable in the guest. In rare circumstances, this flaw could be used by a malicious user to elevate their privileges within the guest.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade qemu | Jul 30, 2024 | Mar 9, 2021 |
| Gentoo Linux | — | Upgrade app-emulation/qemu. | Aug 16, 2022 | Mar 9, 2021 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 9, 2021 |
| Suse | — | Upgrade qemu-guest-agentUpgrade qemu-seabiosUpgrade qemu-ksmUpgrade qemu-ui-gtkUpgrade qemu-ui-cursesUpgrade qemu-ppcUpgrade qemu-audio-alsaUpgrade qemu-hw-s390x-virtio-gpu-ccwUpgrade qemu-vgabiosUpgrade qemu-langUpgrade qemu-audio-paUpgrade qemu-block-iscsiUpgrade qemu-kvmUpgrade qemu-chardev-baumUpgrade qemu-hw-usb-hostUpgrade qemu-accel-tcg-x86Upgrade qemu-hw-usb-redirectUpgrade qemu-hw-usb-smartcardUpgrade qemu-extraUpgrade qemu-microvmUpgrade qemu-block-curlUpgrade qemu-ui-spice-coreUpgrade qemu-x86Upgrade qemu-ipxeUpgrade qemu-block-sshUpgrade qemu-ui-spice-appUpgrade qemu-vhost-user-gpuUpgrade qemu-chardev-spiceUpgrade qemu-block-rbdUpgrade qemu-block-glusterUpgrade qemu-audio-spiceUpgrade qemu-ui-openglUpgrade qemu-sgabiosUpgrade qemu-hw-display-virtio-vgaUpgrade qemu-hw-display-virtio-gpuUpgrade qemu-armUpgrade qemu-skibootUpgrade qemu-s390xUpgrade qemu-toolsUpgrade qemuUpgrade qemu-block-dmgUpgrade qemu-hw-display-qxlUpgrade qemu-hw-display-virtio-gpu-pciUpgrade qemu-block-nfsUpgrade qemu-ivshmem-toolsUpgrade qemu-SLOF | Jun 11, 2021 | Mar 9, 2021 |
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