CVE-2016-8578

Name: CVE-2016-8578
Creator: NVD / NIST
Published: 2016-11-04T21:59:02.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2016-8578 is a medium-severity vulnerability rated 6/10 on the CVSS scale. The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.

Metrics

CVSS 3.1

6/10

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

EPSS Probability

0.39%

31.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 2.7.1
Opensuse	Leap	42.2
Debian	Debian Linux	8.0

References

http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/10/14Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/10/8Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/93474Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07143.htmlPatch, Third Party Advisory
https://security.gentoo.org/glsa/201611-11Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/10/14Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/10/8Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/93474Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07143.htmlPatch, Third Party Advisory
https://security.gentoo.org/glsa/201611-11Third Party Advisory

Timeline

Published: Nov 4, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-8578?

How severe is CVE-2016-8578?

CVE-2016-8578 has a CVSS score of 6/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2016-8578?

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-2016-8578?

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

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Source: NVD / NIST