CVE-2016-6351

Name: CVE-2016-6351
Creator: NVD / NIST
Published: 2016-09-07T18:59:04.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2016-6351 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. The esp_do_dma function in hw/scsi/esp.c in QEMU (aka Quick Emulator), when built with ESP/NCR53C9x controller emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or execute arbitrary code on the QEMU host via vectors involving DMA read into ESP command buffer.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

The esp_do_dma function in hw/scsi/esp.c in QEMU (aka Quick Emulator), when built with ESP/NCR53C9x controller emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or execute arbitrary code on the QEMU host via vectors involving DMA read into ESP command buffer.

Metrics

CVSS 3.1

6.7/10

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

EPSS Probability

0.48%

37.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 2.6.2
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Debian	Debian Linux	8.0

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=926cde5f3e4d2504ed161ed0cb771ac7cad6fd11
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=cc96677469388bad3d66479379735cf75db069e3
http://www.openwall.com/lists/oss-security/2016/07/25/14Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/26/7Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/92119Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-3047-1Third Party Advisory
http://www.ubuntu.com/usn/USN-3047-2Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing List, Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=926cde5f3e4d2504ed161ed0cb771ac7cad6fd11
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=cc96677469388bad3d66479379735cf75db069e3
http://www.openwall.com/lists/oss-security/2016/07/25/14Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/26/7Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/92119Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-3047-1Third Party Advisory
http://www.ubuntu.com/usn/USN-3047-2Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing List, Third Party Advisory

Timeline

Published: Sep 7, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6351?

How severe is CVE-2016-6351?

CVE-2016-6351 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6351?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-6351?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST