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CVE-2021-33656

Description

When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.


Affected Package


OS OS Version Package Name Package Version
ubuntu upstream linux-hwe 5.12~rc1
ubuntu 16.04 linux-hwe 4.15.0-192.203~16.04.1
ubuntu 18.04 linux-hwe-5.4 5.4.0-125.141~18.04.1
ubuntu upstream linux-hwe-5.4 5.12~rc1
ubuntu upstream linux-hwe-5.8 5.12~rc1
ubuntu upstream linux-hwe-5.11 5.12~rc1
ubuntu 20.04 linux-hwe-5.13 any
ubuntu upstream linux-hwe-5.13 5.12~rc1
ubuntu upstream linux-hwe-edge 5.12~rc1
ubuntu 14.04 linux-lts-xenial any
ubuntu upstream linux-lts-xenial 5.12~rc1
ubuntu 18.04 linux-kvm 4.15.0-1126.131
ubuntu upstream linux-kvm 5.12~rc1
ubuntu 16.04 linux-kvm any
ubuntu 20.04 linux-kvm 5.4.0-1074.79
ubuntu 20.04 linux-aws 5.4.0-1084.91
ubuntu 14.04 linux-aws any
ubuntu upstream linux-aws 5.12~rc1
ubuntu 16.04 linux-aws 4.4.0-1150.165
ubuntu upstream linux-aws-5.0 5.12~rc1
ubuntu upstream linux-aws-5.3 5.12~rc1
ubuntu 18.04 linux-aws-5.4 5.4.0-1084.91~18.04.1
ubuntu upstream linux-aws-5.4 5.12~rc1
ubuntu upstream linux-aws-5.8 5.12~rc1
ubuntu 20.04 linux-aws-5.11 any
ubuntu upstream linux-aws-5.11 5.12~rc1
ubuntu 20.04 linux-aws-5.13 any
ubuntu upstream linux-aws-5.13 5.12~rc1
ubuntu upstream linux-aws-hwe 5.12~rc1
ubuntu 16.04 linux-aws-hwe 4.15.0-1140.151~16.04.1
ubuntu 20.04 linux-azure 5.4.0-1090.95
ubuntu 14.04 linux-azure 4.15.0-1150.165~14.04.1
ubuntu upstream linux-azure 5.12~rc1
ubuntu 16.04 linux-azure 4.15.0-1150.165~16.04.1
ubuntu 18.04 linux-azure-4.15 4.15.0-1150.165
ubuntu upstream linux-azure-4.15 5.12~rc1
ubuntu upstream linux-azure-5.3 5.12~rc1
ubuntu 18.04 linux-azure-5.4 5.4.0-1090.95~18.04.1
ubuntu upstream linux-azure-5.4 5.12~rc1
ubuntu upstream linux-azure-5.8 5.12~rc1
ubuntu 20.04 linux-azure-5.11 any
ubuntu upstream linux-azure-5.11 5.12~rc1
ubuntu 20.04 linux-azure-5.13 any
ubuntu upstream linux-azure-5.13 5.12~rc1
ubuntu 20.04 linux-azure-fde 5.4.0-1090.95+cvm1.1
ubuntu upstream linux-azure-fde 5.12~rc1
ubuntu 20.04 linux-bluefield 5.4.0-1045.50
ubuntu upstream linux-bluefield 5.12~rc1
ubuntu 18.04 linux-dell300x 4.15.0-1052.57
ubuntu upstream linux-dell300x 5.12~rc1
ubuntu upstream linux-azure-edge 5.12~rc1
ubuntu upstream linux-fips 5.12~rc1
ubuntu 16.04 linux-fips any
ubuntu 20.04 linux-gcp 5.4.0-1087.95
ubuntu upstream linux-gcp 5.12~rc1
ubuntu 16.04 linux-gcp 4.15.0-1135.151~16.04.2
ubuntu upstream linux-gcp-4.15 5.12~rc1
ubuntu 18.04 linux-gcp-4.15 4.15.0-1135.151
ubuntu upstream linux-gcp-5.3 5.12~rc1
ubuntu 18.04 linux-gcp-5.4 5.4.0-1087.95~18.04.1
ubuntu upstream linux-gcp-5.4 5.12~rc1
ubuntu upstream linux-gcp-5.8 5.12~rc1
ubuntu 20.04 linux-gcp-5.11 any
ubuntu upstream linux-gcp-5.11 5.12~rc1
ubuntu 20.04 linux-gcp-5.13 any
ubuntu upstream linux-gcp-5.13 5.12~rc1
ubuntu 20.04 linux-gke 5.4.0-1081.87
ubuntu upstream linux-gke 5.12~rc1
ubuntu 18.04 linux-gke-4.15 any
ubuntu upstream linux-gke-4.15 5.12~rc1
ubuntu upstream linux-gke-5.0 5.12~rc1
ubuntu upstream linux-gke-5.3 5.12~rc1
ubuntu upstream linux-gke-5.4 5.12~rc1
ubuntu 18.04 linux-gke-5.4 any
ubuntu upstream linux-gkeop 5.12~rc1
ubuntu 20.04 linux-gkeop 5.4.0-1052.55
ubuntu upstream linux-gkeop-5.4 5.12~rc1
ubuntu 18.04 linux-gkeop-5.4 any
ubuntu 20.04 linux-ibm 5.4.0-1032.36
ubuntu upstream linux-ibm 5.12~rc1
ubuntu 18.04 linux-ibm-5.4 5.4.0-1032.36~18.04.1
ubuntu upstream linux-ibm-5.4 5.12~rc1
ubuntu 20.04 linux-intel-5.13 any
ubuntu upstream linux-intel-5.13 5.12~rc1
ubuntu upstream linux-intel-iotg 5.12~rc1
ubuntu upstream linux-intel-iotg-5.15 5.12~rc1
ubuntu upstream linux-lowlatency 5.12~rc1
ubuntu 18.04 linux-oracle 4.15.0-1105.116
ubuntu upstream linux-oracle 5.12~rc1
ubuntu 16.04 linux-oracle 4.15.0-1105.116~16.04.1
ubuntu 20.04 linux-oracle 5.4.0-1082.90
ubuntu upstream linux-oracle-5.0 5.12~rc1
ubuntu upstream linux-oracle-5.3 5.12~rc1
ubuntu upstream linux-oracle-5.4 5.12~rc1
ubuntu 18.04 linux-oracle-5.4 5.4.0-1082.90~18.04.1
ubuntu upstream linux-oracle-5.8 5.12~rc1
ubuntu 20.04 linux-oracle-5.11 any
ubuntu upstream linux-oracle-5.11 5.12~rc1
ubuntu 20.04 linux-oracle-5.13 any
ubuntu upstream linux-oracle-5.13 5.12~rc1
ubuntu 18.04 linux-oem any
ubuntu upstream linux-oem 5.12~rc1
ubuntu 20.04 linux-oem-5.6 any
ubuntu upstream linux-oem-5.6 5.12~rc1
ubuntu 20.04 linux-oem-5.10 any
ubuntu upstream linux-oem-5.10 5.12~rc1
ubuntu 20.04 linux-oem-5.13 any
ubuntu upstream linux-oem-5.13 5.12~rc1
ubuntu upstream linux-oem-5.14 5.12~rc1
ubuntu upstream linux-oem-5.17 5.12~rc1
ubuntu 18.04 linux-oem-osp1 any
ubuntu upstream linux-oem-osp1 5.12~rc1
ubuntu upstream linux-raspi 5.12~rc1
ubuntu 20.04 linux-raspi 5.4.0-1069.79
ubuntu 18.04 linux-raspi2 4.15.0-1118.126
ubuntu upstream linux-raspi2 5.12~rc1
ubuntu upstream linux-raspi2-5.3 5.12~rc1
ubuntu 18.04 linux-raspi-5.4 5.4.0-1069.79~18.04.1
ubuntu upstream linux-raspi-5.4 5.12~rc1
ubuntu upstream linux-riscv 5.12~rc1
ubuntu upstream linux-riscv-5.8 5.12~rc1
ubuntu 20.04 linux-riscv-5.11 any
ubuntu upstream linux-riscv-5.11 5.12~rc1
ubuntu upstream linux-snapdragon 5.12~rc1
ubuntu 18.04 linux-snapdragon 4.15.0-1136.146
ubuntu 18.04 linux 4.15.0-192.203
ubuntu 20.04 linux 5.4.0-125.141
ubuntu 14.04 linux any
ubuntu upstream linux 5.12~rc1
ubuntu upstream linux-lowlatency-hwe-5.15 5.12~rc1
ubuntu upstream linux-hwe-5.15 5.12~rc1
ubuntu upstream linux-aws-5.15 5.12~rc1
ubuntu upstream linux-gcp-5.15 5.12~rc1
ubuntu upstream linux-gke-5.15 5.12~rc1
ubuntu upstream linux-azure-5.15 5.12~rc1

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