CVE-2017-14156 Information

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.

CVSS Vector

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

Reference

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/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5