CVE-2016-7466

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.

Category

6.0
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2016/09/19/8 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2016/09/20/3 third party advisory mailing list
https://security.gentoo.org/glsa/201611-11 third party advisory vendor advisory
http://www.securityfocus.com/bid/93029 third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2017:2392 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html vendor advisory mailing list third party advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b53dd4495ced2432a0b652ea895e651d07336f7e
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg02773.html patch mailing list third party advisory
https://access.redhat.com/errata/RHSA-2017:2408 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-7466?
CVE-2016-7466 has been scored as a medium severity vulnerability.
How to fix CVE-2016-7466?
To fix CVE-2016-7466, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-7466 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-7466 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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