VULNERABILITY INTELLIGENCE

CVE-2021-3753

CVSS score4.7 MEDIUM
EPSS probability0.36%
CISA KEVNot currently listed
Published2022-02-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

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.

Weakness classification

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

Primary references