========================================================================= Ubuntu Security Notice USN-5383-1 April 20, 2022 linux, linux-aws, linux-aws-5.13, linux-azure, linux-azure-5.13, linux-gcp, linux-gcp-5.13, linux-hwe-5.13, linux-kvm, linux-oracle, linux-oracle-5.13, linux-raspi vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 20.04 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-gcp: Linux kernel for Google Cloud Platform (GCP) 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-5.13: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.13: Linux kernel for Microsoft Azure cloud systems - linux-gcp-5.13: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe-5.13: Linux hardware enablement (HWE) kernel - linux-oracle-5.13: Linux kernel for Oracle Cloud systems Details: David Bouman discovered that the netfilter subsystem in the Linux kernel did not properly validate passed user register indices. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-1015) 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) Wenqing Liu discovered that the f2fs file system implementation in the Linux kernel did not properly validate inode types while performing garbage collection. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2021-44879) It was discovered that the UDF file system implementation in the Linux kernel could attempt to dereference a null pointer in some situations. An attacker could use this to construct a malicious UDF image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2022-0617) David Bouman discovered that the netfilter subsystem in the Linux kernel did not initialize memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-1016) Lyu Tao discovered that the NFS implementation in the Linux kernel did not properly handle requests to open a directory on a regular file. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-24448) It was discovered that the VirtIO Bluetooth driver in the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2022-26878) It was discovered that the YAM AX.25 device driver in the Linux kernel did not properly deallocate memory in some error conditions. A local privileged attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2022-24959) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: linux-image-5.13.0-1021-kvm 5.13.0-1021.22 linux-image-5.13.0-1022-aws 5.13.0-1022.24 linux-image-5.13.0-1022-azure 5.13.0-1022.26 linux-image-5.13.0-1024-gcp 5.13.0-1024.29 linux-image-5.13.0-1025-raspi 5.13.0-1025.27 linux-image-5.13.0-1025-raspi-nolpae 5.13.0-1025.27 linux-image-5.13.0-1027-oracle 5.13.0-1027.32 linux-image-5.13.0-40-generic 5.13.0-40.45 linux-image-5.13.0-40-generic-64k 5.13.0-40.45 linux-image-5.13.0-40-generic-lpae 5.13.0-40.45 linux-image-5.13.0-40-lowlatency 5.13.0-40.45 linux-image-aws 5.13.0.1022.23 linux-image-azure 5.13.0.1022.22 linux-image-gcp 5.13.0.1024.22 linux-image-generic 5.13.0.40.49 linux-image-generic-64k 5.13.0.40.49 linux-image-generic-lpae 5.13.0.40.49 linux-image-gke 5.13.0.1024.22 linux-image-kvm 5.13.0.1021.21 linux-image-lowlatency 5.13.0.40.49 linux-image-oem-20.04 5.13.0.40.49 linux-image-oracle 5.13.0.1027.27 linux-image-raspi 5.13.0.1025.30 linux-image-raspi-nolpae 5.13.0.1025.30 linux-image-virtual 5.13.0.40.49 Ubuntu 20.04 LTS: linux-image-5.13.0-1022-aws 5.13.0-1022.24~20.04.1 linux-image-5.13.0-1022-azure 5.13.0-1022.26~20.04.1 linux-image-5.13.0-1024-gcp 5.13.0-1024.29~20.04.1 linux-image-5.13.0-1027-oracle 5.13.0-1027.32~20.04.1 linux-image-5.13.0-40-generic 5.13.0-40.45~20.04.1 linux-image-5.13.0-40-generic-64k 5.13.0-40.45~20.04.1 linux-image-5.13.0-40-generic-lpae 5.13.0-40.45~20.04.1 linux-image-5.13.0-40-lowlatency 5.13.0-40.45~20.04.1 linux-image-aws 5.13.0.1022.24~20.04.15 linux-image-azure 5.13.0.1022.26~20.04.11 linux-image-gcp 5.13.0.1024.29~20.04.1 linux-image-generic-64k-hwe-20.04 5.13.0.40.45~20.04.25 linux-image-generic-hwe-20.04 5.13.0.40.45~20.04.25 linux-image-generic-lpae-hwe-20.04 5.13.0.40.45~20.04.25 linux-image-lowlatency-hwe-20.04 5.13.0.40.45~20.04.25 linux-image-oracle 5.13.0.1027.32~20.04.1 linux-image-virtual-hwe-20.04 5.13.0.40.45~20.04.25 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-5383-1 CVE-2021-43976, CVE-2021-44879, CVE-2022-0617, CVE-2022-1015, CVE-2022-1016, CVE-2022-24448, CVE-2022-24959, CVE-2022-26878 Package Information: https://launchpad.net/ubuntu/+source/linux/5.13.0-40.45 https://launchpad.net/ubuntu/+source/linux-aws/5.13.0-1022.24 https://launchpad.net/ubuntu/+source/linux-azure/5.13.0-1022.26 https://launchpad.net/ubuntu/+source/linux-gcp/5.13.0-1024.29 https://launchpad.net/ubuntu/+source/linux-kvm/5.13.0-1021.22 https://launchpad.net/ubuntu/+source/linux-oracle/5.13.0-1027.32 https://launchpad.net/ubuntu/+source/linux-raspi/5.13.0-1025.27 https://launchpad.net/ubuntu/+source/linux-aws-5.13/5.13.0-1022.24~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.13/5.13.0-1022.26~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.13/5.13.0-1024.29~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.13/5.13.0-40.45~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.13/5.13.0-1027.32~20.04.1