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OpenAdvisories
Unscored CVE-2021-3753 EUVD-2021-27028

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 …

Published Feb 16, 2022 · Updated Aug 3, 2024 · Assigned by redhat

Package: linux Package: linux Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-edge Package: linux-azure-fips Package: linux-bluefield Package: linux-dell300x Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-edge Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-kvm Package: linux-lts-xenial Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.6 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.8 Package: linux-snapdragon Package: linux-vmware Ecosystem: Debian Ecosystem: Ubuntu

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.

Affected products

VendorProductAffectedFixed
— kernel Linux kernel 5.15-rc1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 5.14.6-1 —
Debian 13 linux 5.14.6-1 —
Debian 12 linux 5.14.6-1 —
Debian 11 linux 5.10.46-5 DSA-4978-1
Debian 9 linux 4.9.290-1 DLA-2843-1
Debian 9 linux-4.19 4.19.208-1~deb9u1 DLA-2785-1
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux-realtime +1 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-90.101 USN-5137-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1059.62 USN-5137-1
Ubuntu 20.04 LTS linux-aws-5.11 5.11.0-1020.21~20.04.2 USN-5113-1
Ubuntu 20.04 LTS linux-azure 5.4.0-1063.66 USN-5137-1
Ubuntu 20.04 LTS linux-azure-5.11 +1 5.11.0-1020.21~20.04.1 USN-5113-1
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1021.24 USN-5137-2
Ubuntu 20.04 LTS linux-gcp +1 5.4.0-1057.61 USN-5137-2, USN-5137-1
Ubuntu 20.04 LTS linux-gcp-5.11 5.11.0-1021.23~20.04.1 USN-5113-1
Ubuntu 20.04 LTS linux-gke 5.4.0-1055.58 USN-5137-1
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1026.27 USN-5137-1
Ubuntu 20.04 LTS linux-hwe-5.11 5.11.0-38.42~20.04.1 USN-5113-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1007.8 USN-5137-1
Ubuntu 20.04 LTS linux-kvm 5.4.0-1049.51 USN-5137-1
Ubuntu 20.04 LTS linux-oem-5.10 5.10.0-1050.52 USN-5115-1
Ubuntu 20.04 LTS linux-oem-5.13 5.13.0-1017.21 USN-5117-1
Ubuntu 20.04 LTS linux-raspi 5.4.0-1046.50 USN-5137-2
Ubuntu 20.04 LTS linux-riscv +9 No fix yet —
Ubuntu 20.04 LTS linux-riscv-5.11 5.11.0-1021.22~20.04.1 —
Ubuntu 18.04 LTS linux 4.15.0-162.170 USN-5136-1
Ubuntu 18.04 LTS linux-aws 4.15.0-1115.122 USN-5136-1
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1059.62~18.04.1 USN-5137-1
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1126.139 USN-5136-1
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1063.66~18.04.1 USN-5137-1
Ubuntu 18.04 LTS linux-dell300x 4.15.0-1030.35 USN-5136-1
Ubuntu 18.04 LTS linux-gcp +13 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1111.125 USN-5136-1
Ubuntu 18.04 LTS linux-gcp-5.4 +1 5.4.0-1057.61~18.04.1 USN-5137-2, USN-5137-1
Ubuntu 18.04 LTS linux-gke-5.4 5.4.0-1055.58~18.04.1 USN-5137-2
Ubuntu 18.04 LTS linux-gkeop-5.4 5.4.0-1026.27~18.04.1 USN-5137-1
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-90.101~18.04.1 USN-5137-1
Ubuntu 18.04 LTS linux-kvm 4.15.0-1102.104 USN-5136-1
Ubuntu 18.04 LTS linux-oracle 4.15.0-1083.91 USN-5136-1
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1046.50~18.04.1 USN-5137-2
Ubuntu 18.04 LTS linux-raspi2 4.15.0-1098.104 USN-5136-1
Ubuntu 18.04 LTS linux-snapdragon 4.15.0-1115.124 USN-5136-1
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 8 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1069.73+fips2 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1073.76+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1036.42 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1067.71~20.04.1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2056.58 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2038.42 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1072.81 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2021.23 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1090.97 —
Ubuntu Pro 16.04 LTS linux 4.4.0-242.276 USN-6221-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1158.173 USN-6221-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1115.122~16.04.1 USN-5136-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1126.139~16.04.1 USN-5136-1
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1111.125~16.04.1 USN-5136-1
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-162.170~16.04.1 USN-5136-1
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1121.131 USN-6221-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1083.91~16.04.1 USN-5136-1
Ubuntu Pro 14.04 LTS linux No fix yet —
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1120.126 USN-6221-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1126.139~14.04.1 USN-5136-1
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-242.276~14.04.1 USN-6221-1
ReleasePackageFixed inAdvisory
RHEL 8 kernel-rt +12 4.18.0-553.rt7.342.el8_10 RHSA-2024:2950
RHEL 8 perf +26 4.18.0-553.el8_10 RHSA-2024:3138

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 8 kernel-rt +11 4.18.0-553.rt7.342.el8_10 ALSA-2024:2950
AlmaLinux 8 perf +24 4.18.0-553.el8_10 ALSA-2024:3138

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-553.el8_10 RXSA-2024:3138, RLSA-2024:3138
Rocky Linux 8 kernel-rt 4.18.0-553.rt7.342.el8_10 RLSA-2024:2950
ReleasePackageFixed inAdvisory
SLES 15 SP3 kernel-64kb +7 5.3.18-59.24.1 SUSE-SU-2021:3205-1
SLES 15 SP3 kernel-azure 5.3.18-38.22.2 SUSE-SU-2021:3179-1
SLES 15 SP3 kernel-default-base 5.3.18-59.24.1.18.12.1 SUSE-SU-2021:3205-1
SLES 15 SP3 kernel-syms-azure +1 5.3.18-38.22.1 SUSE-SU-2021:3179-1
SLES 15 SP2 kernel-azure 5.3.18-18.66.2 SUSE-SU-2021:3178-1
SLES 15 SP2 kernel-default-base 5.3.18-24.83.2.9.38.3 SUSE-SU-2021:3207-1
SLES 15 SP2 kernel-docs +3 5.3.18-24.83.2 SUSE-SU-2021:3207-1
SLES 15 SP2 kernel-syms +1 5.3.18-24.83.1 SUSE-SU-2021:3207-1
SLES 15 SP2 kernel-syms-azure +1 5.3.18-18.66.1 SUSE-SU-2021:3178-1
SLES 15 SP1 kernel-docs +4 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SLES 15 SP1 kernel-obs-build 4.12.14-197.102.1 SUSE-SU-2021:3876-1
SLES 15 kernel-docs +1 4.12.14-150.78.2 SUSE-SU-2021:3969-1
SLES 15 kernel-syms +4 4.12.14-150.78.1 SUSE-SU-2021:3969-1
SLES 12 SP5 kernel-azure 4.12.14-16.73.2 SUSE-SU-2021:3192-1
SLES 12 SP5 kernel-docs +3 4.12.14-122.88.1 SUSE-SU-2021:3206-1
SLES 12 SP5 kernel-obs-build 4.12.14-122.88.2 SUSE-SU-2021:3206-1
SLES 12 SP5 kernel-syms-azure +1 4.12.14-16.73.1 SUSE-SU-2021:3192-1
Show 28 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP4 kernel-syms +2 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SLES 12 SP3 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SLES 12 SP3 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SLES 12 SP2 kernel-syms +2 4.4.121-92.161.1 SUSE-SU-2021:3929-1
SLES 11 SP4 kernel-ec2 +8 3.0.101-108.135.1 SUSE-SU-2022:14905-1
SLES for SAP 15 SP1 kernel-docs +3 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SLES for SAP 15 SP1 kernel-obs-build 4.12.14-197.102.1 SUSE-SU-2021:3876-1
SLES for SAP 15 kernel-docs +1 4.12.14-150.78.2 SUSE-SU-2021:3969-1
SLES for SAP 15 kernel-syms +3 4.12.14-150.78.1 SUSE-SU-2021:3969-1
SLES for SAP 12 SP5 kernel-azure 4.12.14-16.73.2 SUSE-SU-2021:3192-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.88.1 SUSE-SU-2021:3206-1
SLES for SAP 12 SP5 kernel-syms-azure +1 4.12.14-16.73.1 SUSE-SU-2021:3192-1
SLES for SAP 12 SP4 kernel-syms +2 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SLES for SAP 12 SP3 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SLES for SAP 12 SP3 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SLE Real Time 12 SP5 kernel-rt +1 4.12.14-10.57.2 SUSE-SU-2021:3217-1
SLE Real Time 12 SP5 kernel-syms-rt +1 4.12.14-10.57.1 SUSE-SU-2021:3217-1
SLE Micro 5.1 kernel-default 5.3.18-59.24.1 SUSE-SU-2021:3205-2
SLE Micro 5.1 kernel-default-base 5.3.18-59.24.1.18.12.1 SUSE-SU-2021:3205-2
SLE Micro 5.1 kernel-rt 5.3.18-57.1 SUSE-SU-2021:3415-1
SLE Micro 5.0 kernel-default 5.3.18-24.83.2 SUSE-SU-2021:3207-1
SLE Micro 5.0 kernel-default-base 5.3.18-24.83.2.9.38.3 SUSE-SU-2021:3207-1
SLE Micro 5.0 kernel-rt 5.3.18-51.2 SUSE-SU-2021:3177-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-59.24.1 SUSE-SU-2021:3205-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_6 1-7.5.1 SUSE-SU-2021:3205-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-24.83.2 SUSE-SU-2021:3207-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_19 1-5.3.4 SUSE-SU-2021:3207-1
SLE Live Patching 15 SP1 kernel-default 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_27 1-3.3.1 SUSE-SU-2021:3876-1
SLE Live Patching 15 kernel-default 4.12.14-150.78.1 SUSE-SU-2021:3969-1
SLE Live Patching 15 kernel-livepatch-SLE15_Update_26 1-1.3.1 SUSE-SU-2021:3969-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.88.1 SUSE-SU-2021:3206-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_23 1-8.5.1 SUSE-SU-2021:3206-1
SLE Live Patching 12 SP4 kernel-default 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_23 1-6.3.1 SUSE-SU-2021:3972-1
SLE HPC 15 SP1 kernel-docs +3 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SLE HPC 15 SP1 kernel-obs-build 4.12.14-197.102.1 SUSE-SU-2021:3876-1
SLE HPC 15 kernel-docs +1 4.12.14-150.78.2 SUSE-SU-2021:3969-1
SLE HPC 15 kernel-syms +3 4.12.14-150.78.1 SUSE-SU-2021:3969-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-57.1 SUSE-SU-2021:3415-1
SUSE Real Time Module 15 SP2 kernel-rt +1 5.3.18-51.2 SUSE-SU-2021:3177-1
SUSE Real Time Module 15 SP2 kernel-syms-rt +1 5.3.18-51.1 SUSE-SU-2021:3177-1
SUSE OpenStack Cloud Crowbar 9 kernel-syms +2 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SUSE OpenStack Cloud Crowbar 8 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SUSE OpenStack Cloud Crowbar 8 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SUSE OpenStack Cloud 9 kernel-syms +2 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SUSE OpenStack Cloud 8 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SUSE OpenStack Cloud 8 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SUSE HPE Helion OpenStack 8 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SUSE HPE Helion OpenStack 8 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SUSE Enterprise Storage 6 kernel-docs +3 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SUSE Enterprise Storage 6 kernel-obs-build 4.12.14-197.102.1 SUSE-SU-2021:3876-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed kernel-source 5.14.6-1.4 openSUSE-SU-2024:13704-1, openSUSE-SU-2024:10728-1
openSUSE Leap 15.3 dtb-aarch64 +7 5.3.18-59.24.1 openSUSE-SU-2021:3205-1
openSUSE Leap 15.3 kernel-azure 5.3.18-38.22.2 openSUSE-SU-2021:3179-1
openSUSE Leap 15.3 kernel-debug +4 4.12.14-197.102.2 openSUSE-SU-2021:3876-1, openSUSE-SU-2021:3205-1
openSUSE Leap 15.3 kernel-default-base 5.3.18-59.24.1.18.12.1 openSUSE-SU-2021:3205-1
openSUSE Leap 15.3 kernel-syms-azure +1 5.3.18-38.22.1 openSUSE-SU-2021:3179-1
openSUSE Leap 15.2 kernel-debug +5 5.3.18-lp152.92.2 openSUSE-SU-2021:1271-1
openSUSE Leap 15.2 kernel-default-base 5.3.18-lp152.92.2.lp152.8.42.3 openSUSE-SU-2021:1271-1
openSUSE Leap 15.2 kernel-docs +2 5.3.18-lp152.92.1 openSUSE-SU-2021:1271-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 kernel-livepatch-4.14.246-187.474 1.0-0.amzn2 ALAS2-2021-1704
Amazon Linux 2 perf +8 4.14.246-187.474.amzn2 ALAS2-2021-1704

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 perf +19 4.18.0-553.el8_10 ELSA-2024-3138
Oracle Linux 7 kernel-uek +5 4.1.12-124.60.1.el7uek ELSA-2022-9088

Advisories 44

References