Ubuntu 5318-1: Linux kernel vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1017-ibm 5.4.0-1017.19 linux-image-5.4.0-1030-bluefield 5.4.0-1030.33 linux-image-5.4.0-1036-gkeop 5.4.0-1036.37 linux-image-5.4.0-104-generic 5.4.0-104.118 linux-image-5.4.0-104-generic-lpae 5.4.0-104.118 linux-image-5.4.0-104-lowlatency 5.4.0-104.118 linux-image-5.4.0-1055-raspi 5.4.0-1055.62 linux-image-5.4.0-1058-kvm 5.4.0-1058.61 linux-image-5.4.0-1065-gke 5.4.0-1065.68 linux-image-5.4.0-1066-oracle 5.4.0-1066.71 linux-image-5.4.0-1067-gcp 5.4.0-1067.71 linux-image-5.4.0-1068-aws 5.4.0-1068.72 linux-image-5.4.0-1072-azure 5.4.0-1072.75 linux-image-5.4.0-1072-azure-fde 5.4.0-1072.75+cvm1.1 linux-image-aws-lts-20.04 5.4.0.1068.70 linux-image-azure-fde 5.4.0.1072.75+cvm1.18 linux-image-azure-lts-20.04 5.4.0.1072.70 linux-image-bluefield 5.4.0.1030.31 linux-image-gcp-lts-20.04 5.4.0.1067.76 linux-image-generic 5.4.0.104.108 linux-image-generic-lpae 5.4.0.104.108 linux-image-gke 5.4.0.1065.75 linux-image-gke-5.4 5.4.0.1065.75 linux-image-gkeop 5.4.0.1036.39 linux-image-gkeop-5.4 5.4.0.1036.39 linux-image-ibm 5.4.0.1017.17 linux-image-ibm-lts-20.04 5.4.0.1017.17 linux-image-kvm 5.4.0.1058.57 linux-image-lowlatency 5.4.0.104.108 linux-image-oem 5.4.0.104.108 linux-image-oem-osp1 5.4.0.104.108 linux-image-oracle-lts-20.04 5.4.0.1066.66 linux-image-raspi 5.4.0.1055.89 linux-image-raspi2 5.4.0.1055.89 linux-image-virtual 5.4.0.104.108 Ubuntu 18.04 LTS: linux-image-5.4.0-1017-ibm 5.4.0-1017.19~18.04.1 linux-image-5.4.0-1036-gkeop 5.4.0-1036.37~18.04.1 linux-image-5.4.0-104-generic 5.4.0-104.118~18.04.1 linux-image-5.4.0-104-generic-lpae 5.4.0-104.118~18.04.1 linux-image-5.4.0-104-lowlatency 5.4.0-104.118~18.04.1 linux-image-5.4.0-1055-raspi 5.4.0-1055.62~18.04.1 linux-image-5.4.0-1065-gke 5.4.0-1065.68~18.04.1 linux-image-5.4.0-1066-oracle 5.4.0-1066.71~18.04.1 linux-image-5.4.0-1067-gcp 5.4.0-1067.71~18.04.1 linux-image-5.4.0-1068-aws 5.4.0-1068.72~18.04.1 linux-image-5.4.0-1072-azure 5.4.0-1072.75~18.04.1 linux-image-aws 5.4.0.1068.50 linux-image-azure 5.4.0.1072.51 linux-image-gcp 5.4.0.1067.52 linux-image-generic-hwe-18.04 5.4.0.104.118~18.04.89 linux-image-generic-lpae-hwe-18.04 5.4.0.104.118~18.04.89 linux-image-gke-5.4 5.4.0.1065.68~18.04.29 linux-image-gkeop-5.4 5.4.0.1036.37~18.04.36 linux-image-ibm 5.4.0.1017.34 linux-image-lowlatency-hwe-18.04 5.4.0.104.118~18.04.89 linux-image-oem 5.4.0.104.118~18.04.89 linux-image-oem-osp1 5.4.0.104.118~18.04.89 linux-image-oracle 5.4.0.1066.71~18.04.45 linux-image-raspi-hwe-18.04 5.4.0.1055.57 linux-image-snapdragon-hwe-18.04 5.4.0.104.118~18.04.89 linux-image-virtual-hwe-18.04 5.4.0.104.118~18.04.89 IMPORTANT: As part of this update, unprivileged eBPF is being disabled by default, as it is the primary known means of exploiting the Branch History Injection issues described above. It should be noted that other mechanisms for exploiting the underlying issues may be discovered. Also, this may cause issues for applications that rely on the unprivileged eBPF functionality. Please see the knowledge base article at https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/BHI for more details. After a standard system update you need to reboot your computer to make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-5318-1
CVE-2022-0001, CVE-2022-0002, CVE-2022-23960, CVE-2022-25636,
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/BHI
Package Information
https://launchpad.net/ubuntu/+source/linux/5.4.0-104.118 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1068.72 https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1072.75 https://launchpad.net/ubuntu/+source/linux-azure-fde/5.4.0-1072.75+cvm1.1 https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1030.33 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1067.71 https://launchpad.net/ubuntu/+source/linux-gke/5.4.0-1065.68 https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1036.37 https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1017.19 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1058.61 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1066.71 https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1055.62 https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1068.72~18.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1072.75~18.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1067.71~18.04.1 https://launchpad.net/ubuntu/+source/linux-gke-5.4/5.4.0-1065.68~18.04.1 https://launchpad.net/ubuntu/+source/linux-gkeop-5.4/5.4.0-1036.37~18.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-104.118~18.04.1 https://launchpad.net/ubuntu/+source/linux-ibm-5.4/5.4.0-1017.19~18.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1066.71~18.04.1 https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1055.62~18.04.1