CVE-2021-3753

 

Published at: - 16-02-2022 08:15

Last modified: - 12-01-2023 08:33

Total changes: - 8

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=1999589
• https://www.openwall.com/lists/oss-security/2021/09/01/4
• https://github.com/torvalds/linux/commit/2287a51ba822384834dafc1c798453375d1107c7
• https://security.netapp.com/advisory/ntap-20221028-0003/

 

Keywords

NVD

 

CVE-2021-3753

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures