CVE-2016-7466

MEDIUM

Qemu < 2.7.1 - Resource Leak

Title source: rule

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.

References (9)

[Patch] http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b53dd4495ced2432a0b652ea895e651d07336f7e

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/09/19/8

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/09/20/3

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/93029

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:2392

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:2408

[Patch, Third Party Advisory] https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg02773.html

[Third Party Advisory] https://security.gentoo.org/glsa/201611-11

Scores

CVSS v3 6.0

EPSS 0.0009

EPSS Percentile 26.1%

Attack Vector LOCAL

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

Classification

CWE

CWE-772

Status published

Affected Products (10)

qemu/qemu < 2.7.1

opensuse/leap

redhat/openstack

redhat/openstack

redhat/openstack

redhat/openstack

redhat/openstack

redhat/openstack

redhat/virtualization

n/a/n/a

Timeline

Published Dec 10, 2016

Tracked Since Feb 18, 2026