CVE-2021-33656

CVE Details

Release Date:

2022-07-18

Description

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

See more information about CVE-2021-33656 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	6.8	Base Metrics:	AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector:	Physical	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2022-9761	2022-09-06
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9761	2022-09-06
Oracle Linux version 8 (kernel)	ELSA-2023-2951	2023-05-23
Oracle VM version 3 (kernel-uek)	OVMSA-2022-0024	2022-09-06

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team