CVE-2021-3753

Published Feb 16, 2022

Last updated 2 years ago

Overview

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.
Source
secalert@redhat.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
4.7
Impact score
3.6
Exploitability score
1
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
1.9
Impact score
2.9
Exploitability score
3.4
Vector string
AV:L/AC:M/Au:N/C:P/I:N/A:N

Weaknesses

secalert@redhat.com
CWE-125
nvd@nist.gov
CWE-125

Social media

Hype score
Not currently trending

Configurations