🛡️ UBUNTU-CVE-2021-3753
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2021-09-02
Updated 2026-06-15
Modified 2026-06-03
Fix URL N/A

Affected Packages

Software From version Fixed in
linux — 5.4.0-90.101
linux-aws — 5.4.0-1059.62
linux-aws-5.0 — —
linux-aws-5.11 — 5.11.0-1020.21~20.04.2
linux-aws-5.3 — —
linux-aws-5.4 — 5.4.0-1059.62~18.04.1
linux-aws-5.8 — —
linux-aws-fips — —
linux-aws-hwe — 4.15.0-1115.122~16.04.1
linux-azure — 5.4.0-1063.66
linux-azure-4.15 — 4.15.0-1126.139
linux-azure-5.11 — 5.11.0-1020.21~20.04.1
linux-azure-5.3 — —
linux-azure-5.4 — 5.4.0-1063.66~18.04.1
linux-azure-5.8 — —
linux-azure-edge — —
linux-azure-fips — —
linux-bluefield — —
linux-dell300x — 4.15.0-1030.35
linux-fips — —
linux-gcp — 5.4.0-1057.61
linux-gcp-4.15 — 4.15.0-1111.125
linux-gcp-5.11 — 5.11.0-1021.23~20.04.1
linux-gcp-5.3 — —
linux-gcp-5.4 — 5.4.0-1057.61~18.04.1
linux-gcp-5.8 — —
linux-gcp-edge — —
linux-gcp-fips — —
linux-gke — 5.4.0-1055.58
linux-gke-4.15 — —
linux-gke-5.4 — 5.4.0-1055.58~18.04.1
linux-gkeop — 5.4.0-1026.27
linux-gkeop-5.4 — 5.4.0-1026.27~18.04.1
linux-hwe — —
linux-hwe-5.11 — 5.11.0-38.42~20.04.1
linux-hwe-5.4 — 5.4.0-90.101~18.04.1
linux-hwe-5.8 — —
linux-hwe-edge — —
linux-ibm — 5.4.0-1007.8
linux-intel-5.13 — —
linux-intel-iot-realtime — —
linux-kvm — 5.4.0-1049.51
linux-lts-xenial — 4.4.0-242.276~14.04.1
linux-oem — —
linux-oem-5.10 — 5.10.0-1050.52
linux-oem-5.13 — 5.13.0-1017.21
linux-oem-5.6 — —
linux-oracle — 5.4.0-1057.61
linux-oracle-5.0 — —
linux-oracle-5.11 — 5.11.0-1020.21~20.04.1
linux-oracle-5.3 — —
linux-oracle-5.4 — 5.4.0-1057.61~18.04.1
linux-oracle-5.8 — —
linux-raspi — 5.4.0-1046.50
linux-raspi-5.4 — 5.4.0-1046.50~18.04.1
linux-raspi-realtime — —
linux-raspi2 — —
linux-realtime — —
linux-riscv — —
linux-riscv-5.11 — 5.11.0-1021.22~20.04.1
linux-riscv-5.8 — —
linux-snapdragon — 4.15.0-1115.124

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