** DISPUTED ** Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory. NOTE: a third party has indicated that this report is not security relevant.
http://www.securityfocus.com/bid/103356
https://bugzilla.suse.com/show_bug.cgi?id=1084755
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
https://lkml.org/lkml/2018/3/2/970
https://usn.ubuntu.com/3654-1/
https://usn.ubuntu.com/3654-2/
https://usn.ubuntu.com/3656-1/
Source: MITRE
Published: 2018-03-09
Updated: 2019-02-28
Type: CWE-362
Base Score: 4.7
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.4
Severity: MEDIUM
Base Score: 4.7
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1
Severity: MEDIUM