Medium severity · published Dec 10, 2016
CVE-2016-7466
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…
6.0
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LE
Leap · Opensuse
42.2 · source: NVD
OP
Openstack · Redhat
6.0; 7.0; 8; 9; 10; 11 · source: NVD
QE
Qemu · Qemu
through 2.7.1 · source: NVD
VI
Virtualization · Redhat
4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-7466
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-7466
git.qemu.org
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b53dd4495ced2432a0b652ea895e651d07336f7e
Mailing List
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
Mailing List
http://www.openwall.com/lists/oss-security/2016/09/19/8
Mailing List
http://www.openwall.com/lists/oss-security/2016/09/20/3
Third Party Advisory
http://www.securityfocus.com/bid/93029
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2392
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