CVE-2021-33656

Updated: 2025-08-20 01:44:45.726653

Description:

When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0.0
CVSS Version 3.x MEDIUM 6.8

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

Ubuntu 16.04 ELS linux 4.4.0 6.8 MEDIUM Released CLSA-2022:1667414297 2022-11-02 17:04:11
Ubuntu 18.04 ELS linux 4.15.0 6.8 MEDIUM Ignored 2023-03-02 04:04:12 Ignored due to low severity
Total: 12