The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4 allows local users to obtain sensitive information from uninitialized kernel heap-memory locations via an SG_GET_REQUEST_TABLE ioctl call for /dev/sg0.
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.4
http://www.securityfocus.com/bid/101187
https://github.com/torvalds/linux/commit/3e0097499839e0fe3af380410eababe5a47c4cf9
Source: MITRE
Published: 2017-10-04
Updated: 2018-08-24
Type: CWE-200
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM