CVE-2016-5403

2016-08-0200:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

0.001 Low

EPSS

Percentile

29.0%

JSON

The virtqueue_pop function in hw/virtio/virtio.c in QEMU allows local guest
OS administrators to cause a denial of service (memory consumption and QEMU
process crash) by submitting requests without waiting for completion.

Bugs

Notes

Author	Note
mdeslaur	the patch for this CVE introduced a regression and was later reverted pending investigation. See LP: #1612089. proposed regression fixes: http://lists.nongnu.org/archive/html/qemu-devel/2016-08/msg01038.html http://lists.nongnu.org/archive/html/qemu-devel/2016-08/msg02666.html

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchqemu< 2.0.0+dfsg-2ubuntu1.30UNKNOWN
ubuntu16.04noarchqemu< 1:2.5+dfsg-5ubuntu10.6UNKNOWN
ubuntu16.10noarchqemu< 1:2.6.1+dfsg-0ubuntu5.1UNKNOWN
ubuntu12.04noarchqemu-kvm< 1.0+noroms-0ubuntu14.31UNKNOWN
ubuntu12.04noarchxen< 4.1.6.1-0ubuntu0.12.04.12UNKNOWN
ubuntu14.04noarchxen< 4.4.2-0ubuntu0.14.04.7UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	14.04	noarch	qemu	< 2.0.0+dfsg-2ubuntu1.30	UNKNOWN
ubuntu	16.04	noarch	qemu	< 1:2.5+dfsg-5ubuntu10.6	UNKNOWN
ubuntu	16.10	noarch	qemu	< 1:2.6.1+dfsg-0ubuntu5.1	UNKNOWN
ubuntu	12.04	noarch	qemu-kvm	< 1.0+noroms-0ubuntu14.31	UNKNOWN
ubuntu	12.04	noarch	xen	< 4.1.6.1-0ubuntu0.12.04.12	UNKNOWN
ubuntu	14.04	noarch	xen	< 4.4.2-0ubuntu0.14.04.7	UNKNOWN