========================================================================= Ubuntu Security Notice USN-5339-1 March 22, 2022 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-snapdragon vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM 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-4.15: Linux kernel for Microsoft Azure Cloud systems - linux-dell300x: Linux kernel for Dell 300x platforms - linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-azure: Linux kernel for Microsoft Azure Cloud systems Details: Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492) It was discovered that an out-of-bounds (OOB) memory access flaw existed in the f2fs module of the Linux kernel. A local attacker could use this issue to cause a denial of service (system crash). (CVE-2021-3506) Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-43976) It was discovered that the ARM Trusted Execution Environment (TEE) subsystem in the Linux kernel contained a race condition leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-44733) It was discovered that the Phone Network protocol (PhoNet) implementation in the Linux kernel did not properly perform reference counting in some error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2021-45095) Samuel Page discovered that the Transparent Inter-Process Communication (TIPC) protocol implementation in the Linux kernel contained a stack-based buffer overflow. A remote attacker could use this to cause a denial of service (system crash) for systems that have a TIPC bearer configured. (CVE-2022-0435) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1038-dell300x 4.15.0-1038.43 linux-image-4.15.0-1090-oracle 4.15.0-1090.99 linux-image-4.15.0-1110-kvm 4.15.0-1110.113 linux-image-4.15.0-1119-gcp 4.15.0-1119.133 linux-image-4.15.0-1123-snapdragon 4.15.0-1123.132 linux-image-4.15.0-1124-aws 4.15.0-1124.133 linux-image-4.15.0-1134-azure 4.15.0-1134.147 linux-image-4.15.0-173-generic 4.15.0-173.182 linux-image-4.15.0-173-generic-lpae 4.15.0-173.182 linux-image-4.15.0-173-lowlatency 4.15.0-173.182 linux-image-aws-lts-18.04 4.15.0.1124.127 linux-image-azure-lts-18.04 4.15.0.1134.107 linux-image-dell300x 4.15.0.1038.40 linux-image-gcp-lts-18.04 4.15.0.1119.138 linux-image-generic 4.15.0.173.162 linux-image-generic-lpae 4.15.0.173.162 linux-image-kvm 4.15.0.1110.106 linux-image-lowlatency 4.15.0.173.162 linux-image-oracle-lts-18.04 4.15.0.1090.100 linux-image-snapdragon 4.15.0.1123.126 linux-image-virtual 4.15.0.173.162 Ubuntu 16.04 ESM: linux-image-4.15.0-1090-oracle 4.15.0-1090.99~16.04.1 linux-image-4.15.0-1124-aws-hwe 4.15.0-1124.133~16.04.1 linux-image-4.15.0-173-generic 4.15.0-173.182~16.04.1 linux-image-4.15.0-173-lowlatency 4.15.0-173.182~16.04.1 linux-image-aws-hwe 4.15.0.1124.114 linux-image-generic-hwe-16.04 4.15.0.173.165 linux-image-lowlatency-hwe-16.04 4.15.0.173.165 linux-image-oem 4.15.0.173.165 linux-image-oracle 4.15.0.1090.78 linux-image-virtual-hwe-16.04 4.15.0.173.165 Ubuntu 14.04 ESM: linux-image-4.15.0-1134-azure 4.15.0-1134.147~14.04.1 linux-image-azure 4.15.0.1134.107 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-5339-1 CVE-2021-3506, CVE-2021-43976, CVE-2021-44733, CVE-2021-45095, CVE-2022-0435, CVE-2022-0492 Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-173.182 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1124.133 https://launchpad.net/ubuntu/+source/linux-azure-4.15/4.15.0-1134.147 https://launchpad.net/ubuntu/+source/linux-dell300x/4.15.0-1038.43 https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1119.133 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1110.113 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1090.99 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1123.132