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Qemu before version 2.9 is vulnerable to an improper link following when built with the VirtFS. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade qemu-kvmUpgrade qemu | May 30, 2017 | Apr 20, 2017 |
| Gentoo Linux | — | Upgrade app-emulation/qemu. | Oct 30, 2017 | Apr 10, 2017 |
| Huawei Euleros 2_0_sp2 | — | Upgrade qemu-kvmUpgrade qemu-imgUpgrade qemu-kvm-common | Jun 17, 2020 | Apr 26, 2018 |
| Suse | — | Upgrade qemu-block-iscsiUpgrade qemu-s390xUpgrade qemu-block-rbdUpgrade qemu-block-curlUpgrade qemu-ui-spice-appUpgrade qemu-hw-display-virtio-gpu-pciUpgrade qemu-ui-gtkUpgrade qemu-audio-paUpgrade qemu-langUpgrade qemu-chardev-baumUpgrade qemu-guest-agentUpgrade qemu-block-sshUpgrade qemu-seabiosUpgrade qemu-chardev-spiceUpgrade qemu-hw-usb-redirectUpgrade qemu-ipxeUpgrade qemu-ksmUpgrade qemu-audio-spiceUpgrade qemu-skibootUpgrade qemu-ui-openglUpgrade qemu-ui-spice-coreUpgrade qemu-hw-s390x-virtio-gpu-ccwUpgrade qemu-audio-alsaUpgrade qemu-ppcUpgrade qemu-s390Upgrade qemu-toolsUpgrade kvmUpgrade qemu-audio-ossUpgrade qemu-sgabiosUpgrade qemu-kvmUpgrade qemu-vgabiosUpgrade qemu-microvmUpgrade qemu-hw-display-qxlUpgrade qemuUpgrade qemu-ui-cursesUpgrade qemu-x86Upgrade qemu-hw-display-virtio-vgaUpgrade qemu-armUpgrade qemu-hw-display-virtio-gpu | Jul 4, 2017 | Apr 20, 2017 |
| Ubuntu | — | Upgrade qemu-system-x86Upgrade qemu-systemUpgrade qemu-system-sparcUpgrade qemu-system-mipsUpgrade qemu-system-ppcUpgrade qemu-system-s390xUpgrade qemu-system-aarch64Upgrade qemu-system-miscUpgrade qemu-system-arm | Apr 21, 2017 | Apr 20, 2017 |
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