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cve[email protected]CVE-2016-7422
HistoryDec 10, 2016 - 12:59 a.m.

CVE-2016-7422

2016-12-1000:59:18
CWE-120
web.nvd.nist.gov
43
4
cve-2016-7422
virtqueue_map_desc
qemu
quick emulator
denial of service
null pointer dereference

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.9%

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.

Affected configurations

NVD
Node
qemuqemuRange2.7.1
Node
opensuseleapMatch42.2
Node
redhatopenstackMatch6.0
OR
redhatopenstackMatch7.0
OR
redhatopenstackMatch8
OR
redhatopenstackMatch9
OR
redhatopenstackMatch10
OR
redhatopenstackMatch11
Node
redhatvirtualizationMatch4.0
AND
redhatenterprise_linuxMatch7.0
CPENameOperatorVersion
qemu:qemuqemule2.7.1

Social References

More

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.9%