========================================================================== Ubuntu Security Notice USN-6171-1 June 16, 2023 linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.19, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.10 - Ubuntu 22.04 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-lowlatency: Linux low latency kernel - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-hwe-5.19: Linux hardware enablement (HWE) kernel Details: William Zhao discovered that the Traffic Control (TC) subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-4269) It was discovered that the TUN/TAP driver in the Linux kernel did not properly initialize socket data. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-1076) It was discovered that the Real-Time Scheduling Class implementation in the Linux kernel contained a type confusion vulnerability in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-1077) It was discovered that the ASUS HID driver in the Linux kernel did not properly handle device removal, leading to a use-after-free vulnerability. A local attacker with physical access could plug in a specially crafted USB device to cause a denial of service (system crash). (CVE-2023-1079) It was discovered that the Xircom PCMCIA network device driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1670) It was discovered that a race condition existed in the Xen transport layer implementation for the 9P file system protocol in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2023-1859) Jose Oliveira and Rodrigo Branco discovered that the Spectre Variant 2 mitigations with prctl syscall were insufficient in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2023-1998) It was discovered that the BigBen Interactive Kids' gamepad driver in the Linux kernel did not properly handle device removal, leading to a use- after-free vulnerability. A local attacker with physical access could plug in a specially crafted USB device to cause a denial of service (system crash). (CVE-2023-25012) It was discovered that a use-after-free vulnerability existed in the HFS+ file system implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-2985) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.10: linux-image-5.19.0-1021-raspi 5.19.0-1021.28 linux-image-5.19.0-1021-raspi-nolpae 5.19.0-1021.28 linux-image-5.19.0-1025-kvm 5.19.0-1025.26 linux-image-5.19.0-1025-oracle 5.19.0-1025.28 linux-image-5.19.0-1026-gcp 5.19.0-1026.28 linux-image-5.19.0-1027-aws 5.19.0-1027.28 linux-image-5.19.0-1027-lowlatency 5.19.0-1027.28 linux-image-5.19.0-1027-lowlatency-64k 5.19.0-1027.28 linux-image-5.19.0-1028-azure 5.19.0-1028.31 linux-image-5.19.0-45-generic 5.19.0-45.46 linux-image-5.19.0-45-generic-64k 5.19.0-45.46 linux-image-5.19.0-45-generic-lpae 5.19.0-45.46 linux-image-aws 5.19.0.1027.24 linux-image-azure 5.19.0.1028.23 linux-image-gcp 5.19.0.1026.22 linux-image-generic 5.19.0.45.41 linux-image-generic-64k 5.19.0.45.41 linux-image-generic-lpae 5.19.0.45.41 linux-image-kvm 5.19.0.1025.22 linux-image-lowlatency 5.19.0.1027.23 linux-image-lowlatency-64k 5.19.0.1027.23 linux-image-oracle 5.19.0.1025.21 linux-image-raspi 5.19.0.1021.20 linux-image-raspi-nolpae 5.19.0.1021.20 linux-image-virtual 5.19.0.45.41 Ubuntu 22.04 LTS: linux-image-5.19.0-45-generic 5.19.0-45.46~22.04.1 linux-image-5.19.0-45-generic-64k 5.19.0-45.46~22.04.1 linux-image-5.19.0-45-generic-lpae 5.19.0-45.46~22.04.1 linux-image-generic-64k-hwe-22.04 5.19.0.45.46~22.04.20 linux-image-generic-hwe-22.04 5.19.0.45.46~22.04.20 linux-image-generic-lpae-hwe-22.04 5.19.0.45.46~22.04.20 linux-image-virtual-hwe-22.04 5.19.0.45.46~22.04.20 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-6171-1 CVE-2022-4269, CVE-2023-1076, CVE-2023-1077, CVE-2023-1079, CVE-2023-1670, CVE-2023-1859, CVE-2023-1998, CVE-2023-25012, CVE-2023-2985 Package Information: https://launchpad.net/ubuntu/+source/linux/5.19.0-45.46 https://launchpad.net/ubuntu/+source/linux-aws/5.19.0-1027.28 https://launchpad.net/ubuntu/+source/linux-azure/5.19.0-1028.31 https://launchpad.net/ubuntu/+source/linux-gcp/5.19.0-1026.28 https://launchpad.net/ubuntu/+source/linux-kvm/5.19.0-1025.26 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.19.0-1027.28 https://launchpad.net/ubuntu/+source/linux-oracle/5.19.0-1025.28 https://launchpad.net/ubuntu/+source/linux-raspi/5.19.0-1021.28 https://launchpad.net/ubuntu/+source/linux-hwe-5.19/5.19.0-45.46~22.04.1