CVE-2017-9985

Name: CVE-2017-9985
Creator: NVD / NIST
Published: 2017-06-28T06:29:00.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2017-9985 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The snd_msndmidi_input_read function in sound/isa/msnd/msnd_midi.c in the Linux kernel through 4.11.7 allows local users to cause a denial of service (over-boundary access) or possibly have unspecified other impact by changing the value of a message queue head pointer between two kernel reads of that value, aka a "double fetch" vulnerability.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

The snd_msndmidi_input_read function in sound/isa/msnd/msnd_midi.c in the Linux kernel through 4.11.7 allows local users to cause a denial of service (over-boundary access) or possibly have unspecified other impact by changing the value of a message queue head pointer between two kernel reads of that value, aka a "double fetch" vulnerability.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.33%

24.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 3.18.71
Linux	Linux Kernel	>= 3.19, < 4.1.45
Linux	Linux Kernel	>= 4.2, < 4.4.88
Linux	Linux Kernel	>= 4.5, < 4.9.50
Linux	Linux Kernel	>= 4.10, < 4.12.13
Canonical	Ubuntu Linux	14.04

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=20e2b791796bd68816fa115f12be5320de2b8021Vendor Advisory
http://www.securityfocus.com/bid/99335Third Party Advisory, VDB Entry
https://bugzilla.kernel.org/show_bug.cgi?id=196133Issue Tracking
https://github.com/torvalds/linux/commit/20e2b791796bd68816fa115f12be5320de2b8021Third Party Advisory
https://usn.ubuntu.com/3754-1/Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=20e2b791796bd68816fa115f12be5320de2b8021Vendor Advisory
http://www.securityfocus.com/bid/99335Third Party Advisory, VDB Entry
https://bugzilla.kernel.org/show_bug.cgi?id=196133Issue Tracking
https://github.com/torvalds/linux/commit/20e2b791796bd68816fa115f12be5320de2b8021Third Party Advisory
https://usn.ubuntu.com/3754-1/Third Party Advisory

Timeline

Published: Jun 28, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-9985?

How severe is CVE-2017-9985?

CVE-2017-9985 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2017-9985?

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-2017-9985?

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

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Source: NVD / NIST