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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
Memory leak in the usb_xhci_exit function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator), when the xhci uses msix, allows local guest OS administrators to cause a denial of service (memory consumption and possibly QEMU process crash) by repeatedly unplugging a USB device.
Metrics
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CVE Modified by Red Hat, Inc.5/14/2024 12:05:40 AM
Action
Type
Old Value
New Value
CVE Modified by Red Hat, Inc.2/12/2023 6:25:26 PM
Action
Type
Old Value
New Value
Removed
CVSS V2
Red Hat, Inc. (AV:A/AC:M/Au:S/C:N/I:N/A:P)
Removed
CVSS V3
Red Hat, Inc. AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
Changed
Description
A memory-leak flaw was found in the Quick Emulator(QEMU) built with USB xHCI controller emulation support. The flaw could occur while doing a USB-device unplug operation. Unplugging the device repeatedly resulted in leaking host memory, which affected other services on the host. A privileged user inside the guest could exploit this flaw to cause a denial of service on the host or potentially crash the host's QEMU process instance.
Memory leak in the usb_xhci_exit function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator), when the xhci uses msix, allows local guest OS administrators to cause a denial of service (memory consumption and possibly QEMU process crash) by repeatedly unplugging a USB device.
CVE Modified by Red Hat, Inc.2/02/2023 11:17:41 AM
Action
Type
Old Value
New Value
Added
CVSS V2
Red Hat, Inc. (AV:A/AC:M/Au:S/C:N/I:N/A:P)
Added
CVSS V3
Red Hat, Inc. AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
Changed
Description
Memory leak in the usb_xhci_exit function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator), when the xhci uses msix, allows local guest OS administrators to cause a denial of service (memory consumption and possibly QEMU process crash) by repeatedly unplugging a USB device.
A memory-leak flaw was found in the Quick Emulator(QEMU) built with USB xHCI controller emulation support. The flaw could occur while doing a USB-device unplug operation. Unplugging the device repeatedly resulted in leaking host memory, which affected other services on the host. A privileged user inside the guest could exploit this flaw to cause a denial of service on the host or potentially crash the host's QEMU process instance.
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