Alma Linux: CVE-2021-3507: Moderate: qemu-kvm security, bug fix, and enhancement update (ALSA-2022-7967)
Description
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.
Solution(s)
- alma-upgrade-qemu-guest-agent
- alma-upgrade-qemu-img
- alma-upgrade-qemu-kvm
- alma-upgrade-qemu-kvm-audio-pa
- alma-upgrade-qemu-kvm-block-curl
- alma-upgrade-qemu-kvm-block-rbd
- alma-upgrade-qemu-kvm-common
- alma-upgrade-qemu-kvm-core
- alma-upgrade-qemu-kvm-device-display-virtio-gpu
- alma-upgrade-qemu-kvm-device-display-virtio-gpu-ccw
- alma-upgrade-qemu-kvm-device-display-virtio-gpu-gl
- alma-upgrade-qemu-kvm-device-display-virtio-gpu-pci
- alma-upgrade-qemu-kvm-device-display-virtio-gpu-pci-gl
- alma-upgrade-qemu-kvm-device-display-virtio-vga
- alma-upgrade-qemu-kvm-device-display-virtio-vga-gl
- alma-upgrade-qemu-kvm-device-usb-host
- alma-upgrade-qemu-kvm-device-usb-redirect
- alma-upgrade-qemu-kvm-docs
- alma-upgrade-qemu-kvm-tools
- alma-upgrade-qemu-kvm-ui-egl-headless
- alma-upgrade-qemu-kvm-ui-opengl
- alma-upgrade-qemu-pr-helper
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