CVE-2020-0431
kernel: possible out of bounds write in kbd_keycode of keyboard.c
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · January 14, 2021
Updated · June 28, 2026
Description
A flaw out of bounds write in the Linux kernel human interface devices subsystem was found in the way user calls find key code by index. A local user could use this flaw to crash the system or escalate privileges on the system.
Statement
This flaw is rated as having a Moderate impact because in the default configuration, the issue can only be triggered by a privileged local user.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE-284 · Improper Access Control