CVE-2017-14156

LOW

Description

The atyfb_ioctl function in drivers/video/fbdev/aty/atyfb_base.c in the Linux kernel through 4.12.10 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading locations associated with padding bytes.

References

http://www.debian.org/security/2017/dsa-3981

http://www.securityfocus.com/bid/100634

https://github.com/torvalds/linux/pull/441

https://marc.info/?l=linux-kernel&m=150401461613306&w=2

https://marc.info/?l=linux-kernel&m=150453196710422&w=2

https://usn.ubuntu.com/3583-1/

https://usn.ubuntu.com/3583-2/

Details

Source: MITRE

Published: 2017-09-05

Updated: 2018-03-16

Type: CWE-200

Risk Information

CVSS v2.0

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

CVSS v3.0

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