CVE-2016-8576

Severity

19%

Complexity

34%

Confidentiality

48%

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

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.

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CVSS 3.0 Base Score 6. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H).

CVSS 2.0 Base Score 1.9. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/Au:N/C:N/I:N/A:P).

Overview

First reported 8 years ago

2016-11-04 21:59:00

Last updated 6 years ago

2018-09-07 10:29:00

Affected Software

QEMU

References

http://git.qemu.org/?p=qemu.git;a=commit;h=05f43d44e4bc26611ce25fd7d726e483f73363ce

Patch

openSUSE-SU-2016:3237

[oss-security] 20161010 Re: CVE request Qemu: usb: xHCI: infinite loop vulnerability in xhci_ring_fetch

Patch, Third Party Advisory

[oss-security] 20161010 CVE request Qemu: usb: xHCI: infinite loop vulnerability in xhci_ring_fetch

Third Party Advisory

93469

Third Party Advisory, VDB Entry

RHSA-2017:2392

RHSA-2017:2408

[debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update

[qemu-devel] 20161007 Re: [PATCH] usb: xHCI: add check to limit command TRB processing