CVE-2016-9104

Name: CVE-2016-9104
Creator: NVD / NIST
Published: 2016-12-09T22:59:10.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2016-9104 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. Multiple integer overflows in the (1) v9fs_xattr_read and (2) v9fs_xattr_write functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS administrators to cause a denial of service (QEMU process crash) via a crafted offset, which triggers an out-of-bounds access.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

Multiple integer overflows in the (1) v9fs_xattr_read and (2) v9fs_xattr_write functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS administrators to cause a denial of service (QEMU process crash) via a crafted offset, which triggers an out-of-bounds access.

Metrics

CVSS 3.1

4.4/10

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

EPSS Probability

0.40%

31.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

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

References

http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/28/2Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/30/8Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/93956Third 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/2016-10/msg02942.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/2016/10/28/2Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/30/8Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/93956Third 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/2016-10/msg02942.htmlPatch, Third Party Advisory
https://security.gentoo.org/glsa/201611-11Third Party Advisory

Timeline

Published: Dec 9, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9104?

How severe is CVE-2016-9104?

CVE-2016-9104 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9104?

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-2016-9104?

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

Scan your code now

Source: NVD / NIST