CVE-2017-9985

HIGH

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.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=20e2b791796bd68816fa115f12be5320de2b8021

http://www.securityfocus.com/bid/99335

https://bugzilla.kernel.org/show_bug.cgi?id=196133

https://github.com/torvalds/linux/commit/20e2b791796bd68816fa115f12be5320de2b8021

https://usn.ubuntu.com/3754-1/

Details

Source: MITRE

Published: 2017-06-28

Updated: 2018-08-24

Type: CWE-125

Risk Information

CVSS v2.0

Base Score: 7.2

Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C)

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH