An integer overflow in the qla2x00_sysfs_write_optrom_ctl function in drivers/scsi/qla2xxx/qla_attr.c in the Linux kernel through 4.12.10 allows local users to cause a denial of service (memory corruption and system crash) by leveraging root access.
http://www.securityfocus.com/bid/100571
https://bugzilla.kernel.org/show_bug.cgi?id=194061
https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
https://patchwork.kernel.org/patch/9929625/
Source: MITRE
Published: 2017-08-31
Updated: 2018-03-16
Type: CWE-190
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 4.4
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 0.8
Severity: MEDIUM