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.
http://git.qemu.org/?p=qemu.git;a=commit;h=b53dd4495ced2432a0b652ea895e651d07336f7e
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg02773.html
http://www.securityfocus.com/bid/93029
http://www.openwall.com/lists/oss-security/2016/09/20/3
http://www.openwall.com/lists/oss-security/2016/09/19/8
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
https://security.gentoo.org/glsa/201611-11
Source: MITRE
Published: 2016-12-10
Updated: 2021-08-04
Type: CWE-772
Base Score: 1.9
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 3.4
Severity: LOW
Base Score: 6
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Impact Score: 4
Exploitability Score: 1.5
Severity: MEDIUM