========================================================================== Ubuntu Security Notice USN-5853-1 February 09, 2023 linux, linux-aws, linux-azure, linux-azure-5.4, linux-gkeop, linux-kvm, linux-oracle, 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-gkeop: Linux kernel for Google Container Engine (GKE) 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-azure-5.4: Linux kernel for Microsoft Azure cloud systems - linux-raspi-5.4: Linux kernel for Raspberry Pi systems Details: It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3628) It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3640) Khalid Masum discovered that the NILFS2 file system implementation in the Linux kernel did not properly handle certain error conditions, 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-2022-3649) It was discovered that a race condition existed in the SMSC UFX USB driver implementation in the Linux kernel, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-41849) It was discovered that a race condition existed in the Roccat HID driver in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-41850) Tamás Koczka discovered that the Bluetooth L2CAP implementation in the Linux kernel did not properly initialize memory in some situations. A physically proximate attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2022-42895) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1064-gkeop 5.4.0-1064.68 linux-image-5.4.0-1080-raspi 5.4.0-1080.91 linux-image-5.4.0-1086-kvm 5.4.0-1086.92 linux-image-5.4.0-1093-oracle 5.4.0-1093.102 linux-image-5.4.0-1096-aws 5.4.0-1096.104 linux-image-5.4.0-1103-azure 5.4.0-1103.109 linux-image-5.4.0-139-generic 5.4.0-139.156 linux-image-5.4.0-139-generic-lpae 5.4.0-139.156 linux-image-5.4.0-139-lowlatency 5.4.0-139.156 linux-image-aws-lts-20.04 5.4.0.1096.93 linux-image-azure-lts-20.04 5.4.0.1103.96 linux-image-generic 5.4.0.139.137 linux-image-generic-lpae 5.4.0.139.137 linux-image-gkeop 5.4.0.1064.62 linux-image-gkeop-5.4 5.4.0.1064.62 linux-image-kvm 5.4.0.1086.80 linux-image-lowlatency 5.4.0.139.137 linux-image-oem 5.4.0.139.137 linux-image-oem-osp1 5.4.0.139.137 linux-image-oracle-lts-20.04 5.4.0.1093.86 linux-image-raspi 5.4.0.1080.110 linux-image-raspi2 5.4.0.1080.110 linux-image-virtual 5.4.0.139.137 Ubuntu 18.04 LTS: linux-image-5.4.0-1080-raspi 5.4.0-1080.91~18.04.1 linux-image-5.4.0-1103-azure 5.4.0-1103.109~18.04.1 linux-image-azure 5.4.0.1103.76 linux-image-raspi-hwe-18.04 5.4.0.1080.77 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-5853-1 CVE-2022-3628, CVE-2022-3640, CVE-2022-3649, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895 Package Information: https://launchpad.net/ubuntu/+source/linux/5.4.0-139.156 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1096.104 https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1103.109 https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1064.68 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1086.92 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1093.102 https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1080.91 https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1103.109~18.04.1 https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1080.91~18.04.1