A buffer over-read (at the framebuffer layer) in the fbcon code in the Linux kernel before 5.8.15 could be used by local attackers to read kernel memory, aka CID-6735b4632def.
https://bugzilla.suse.com/show_bug.cgi?id=1178886
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.15
https://syzkaller.appspot.com/bug?id=08b8be45afea11888776f897895aef9ad1c3ecfd
Source: MITRE
Published: 2020-11-18
Updated: 2020-12-15
Type: CWE-125
Base Score: 6.1
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:C
Impact Score: 8.5
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 5.8
Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
Impact Score: 5.5
Exploitability Score: 0.3
Severity: MEDIUM