CVE-2016-8576

2016-11-0400:00:00

ubuntu.com

6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

25.9%

JSON

The xhci_ring_fetch function in hw/usb/hcd-xhci.c in QEMU (aka Quick
Emulator) allows local guest OS administrators to cause a denial of service
(infinite loop and QEMU process crash) by leveraging failure to limit the
number of link Transfer Request Blocks (TRB) to process.

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=840343>

Notes

Author	Note
tyhicks	Privileged user inside the guest can trigger a DoS of the QEMU host process

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchqemu< 2.0.0+dfsg-2ubuntu1.30UNKNOWN
ubuntu16.04noarchqemu< 1:2.5+dfsg-5ubuntu10.6UNKNOWN
ubuntu16.10noarchqemu< 1:2.6.1+dfsg-0ubuntu5.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	14.04	noarch	qemu	< 2.0.0+dfsg-2ubuntu1.30	UNKNOWN
ubuntu	16.04	noarch	qemu	< 1:2.5+dfsg-5ubuntu10.6	UNKNOWN
ubuntu	16.10	noarch	qemu	< 1:2.6.1+dfsg-0ubuntu5.1	UNKNOWN