CVE-2021-3753

CVE Details

Release Date:

2021-09-01

Description

A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.

See more information about CVE-2021-3753 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:	4.7	Base Metrics:	AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Access Vector:	Local network	Attack Complexity:	High
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	None	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2022-9088	2022-02-01
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9088	2022-02-01
Oracle Linux version 8 (kernel)	ELSA-2024-3138	2024-05-23
Oracle VM version 3 (kernel-uek)	OVMSA-2022-0007	2022-02-01

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