========================================================================== Ubuntu Security Notice USN-5318-1 March 09, 2022 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-azure-fde, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-azure-fde: Linux kernel for Microsoft Azure cloud systems - linux-bluefield: Linux kernel for NVIDIA BlueField platforms - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke: Linux kernel for Google Container Engine (GKE) systems - linux-gkeop: Linux kernel for Google Container Engine (GKE) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems - linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-5.4: Linux kernel for Google Container Engine (GKE) systems - linux-gkeop-5.4: Linux kernel for Google Container Engine (GKE) systems - linux-hwe-5.4: Linux hardware enablement (HWE) kernel - linux-ibm-5.4: Linux kernel for IBM cloud systems - linux-oracle-5.4: Linux kernel for Oracle Cloud systems - linux-raspi-5.4: Linux kernel for Raspberry Pi systems Details: Nick Gregory discovered that the Linux kernel incorrectly handled network offload functionality. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-25636) Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano Giuffrida discovered that hardware mitigations added by ARM to their processors to address Spectre-BTI were insufficient. A local attacker could potentially use this to expose sensitive information. (CVE-2022-23960) Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano Giuffrida discovered that hardware mitigations added by Intel to their processors to address Spectre-BTI were insufficient. A local attacker could potentially use this to expose sensitive information. (CVE-2022-0001, CVE-2022-0002) 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