CVE-2016-7466

medium
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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

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

https://access.redhat.com/errata/RHSA-2017:2408

https://access.redhat.com/errata/RHSA-2017:2392

Details

Source: MITRE

Published: 2016-12-10

Updated: 2021-08-04

Type: CWE-772

Risk Information

CVSS v2

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

CVSS v3

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

Tenable Plugins

View all (9 total)

IDNameProductFamilySeverity
102158RHEL 7 : qemu-kvm-rhev (RHSA-2017:2392)NessusRed Hat Local Security Checks
high
96129openSUSE Security Update : qemu (openSUSE-2016-1504)NessusSuSE Local Security Checks
critical
95757openSUSE Security Update : qemu (openSUSE-2016-1451)NessusSuSE Local Security Checks
critical
95537SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:2988-1)NessusSuSE Local Security Checks
critical
95283SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:2879-1)NessusSuSE Local Security Checks
critical
95018GLSA-201611-11 : QEMU: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
94794Fedora 25 : 2:qemu (2016-3d3218ec41)NessusFedora Local Security Checks
medium
94669Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : qemu, qemu-kvm vulnerabilities (USN-3125-1)NessusUbuntu Local Security Checks
critical
94122Fedora 24 : 2:qemu (2016-a56fb613a8)NessusFedora Local Security Checks
critical