========================================================================== Ubuntu Security Notice USN-5851-1 February 09, 2023 linux, linux-azure, linux-azure-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15, linux-raspi vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-azure: Linux kernel for Microsoft Azure Cloud 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-lowlatency: Linux low latency kernel - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-azure-5.15: Linux kernel for Microsoft Azure cloud systems - linux-hwe-5.15: Linux hardware enablement (HWE) kernel - linux-lowlatency-hwe-5.15: Linux low latency kernel - linux-oracle-5.15: Linux kernel for Oracle Cloud systems Details: It was discovered that a memory leak existed in the Unix domain socket implementation of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3543) It was discovered that the Bluetooth HCI implementation in the Linux kernel did not properly deallocate memory in some situations. An attacker could possibly use this cause a denial of service (memory exhaustion). (CVE-2022-3619) It was discovered that the hugetlb implementation in the Linux kernel contained a race condition in some situations. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2022-3623) 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) 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) Arnaud Gatignol, Quentin Minster, Florent Saudel and Guillaume Teissier discovered that the KSMBD implementation in the Linux kernel did not properly validate user-supplied data in some situations. An authenticated attacker could use this to cause a denial of service (system crash), expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2022-47940) It was discovered that a race condition existed in the qdisc implementation 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-2023-0590) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-5.15.0-1015-gkeop 5.15.0-1015.19 linux-image-5.15.0-1024-raspi 5.15.0-1024.26 linux-image-5.15.0-1024-raspi-nolpae 5.15.0-1024.26 linux-image-5.15.0-1025-ibm 5.15.0-1025.28 linux-image-5.15.0-1028-kvm 5.15.0-1028.33 linux-image-5.15.0-1029-oracle 5.15.0-1029.35 linux-image-5.15.0-1033-azure 5.15.0-1033.40 linux-image-5.15.0-60-generic 5.15.0-60.66 linux-image-5.15.0-60-generic-64k 5.15.0-60.66 linux-image-5.15.0-60-generic-lpae 5.15.0-60.66 linux-image-5.15.0-60-lowlatency 5.15.0-60.66 linux-image-5.15.0-60-lowlatency-64k 5.15.0-60.66 linux-image-azure 5.15.0.1033.29 linux-image-azure-lts-22.04 5.15.0.1033.29 linux-image-generic 5.15.0.60.58 linux-image-generic-64k 5.15.0.60.58 linux-image-generic-64k-hwe-22.04 5.15.0.60.58 linux-image-generic-hwe-22.04 5.15.0.60.58 linux-image-generic-lpae 5.15.0.60.58 linux-image-generic-lpae-hwe-22.04 5.15.0.60.58 linux-image-gkeop 5.15.0.1015.14 linux-image-gkeop-5.15 5.15.0.1015.14 linux-image-ibm 5.15.0.1025.21 linux-image-kvm 5.15.0.1028.24 linux-image-lowlatency 5.15.0.60.53 linux-image-lowlatency-64k 5.15.0.60.53 linux-image-lowlatency-64k-hwe-22.04 5.15.0.60.53 linux-image-lowlatency-hwe-22.04 5.15.0.60.53 linux-image-oracle 5.15.0.1029.24 linux-image-raspi 5.15.0.1024.21 linux-image-raspi-nolpae 5.15.0.1024.21 linux-image-virtual 5.15.0.60.58 linux-image-virtual-hwe-22.04 5.15.0.60.58 Ubuntu 20.04 LTS: linux-image-5.15.0-1029-oracle 5.15.0-1029.35~20.04.1 linux-image-5.15.0-1033-azure 5.15.0-1033.40~20.04.1 linux-image-5.15.0-60-generic 5.15.0-60.66~20.04.1 linux-image-5.15.0-60-generic-64k 5.15.0-60.66~20.04.1 linux-image-5.15.0-60-generic-lpae 5.15.0-60.66~20.04.1 linux-image-5.15.0-60-lowlatency 5.15.0-60.66~20.04.1 linux-image-5.15.0-60-lowlatency-64k 5.15.0-60.66~20.04.1 linux-image-azure 5.15.0.1033.40~20.04.23 linux-image-generic-64k-hwe-20.04 5.15.0.60.66~20.04.26 linux-image-generic-hwe-20.04 5.15.0.60.66~20.04.26 linux-image-generic-lpae-hwe-20.04 5.15.0.60.66~20.04.26 linux-image-lowlatency-64k-hwe-20.04 5.15.0.60.66~20.04.23 linux-image-lowlatency-hwe-20.04 5.15.0.60.66~20.04.23 linux-image-oracle 5.15.0.1029.35~20.04.1 linux-image-virtual-hwe-20.04 5.15.0.60.66~20.04.26 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-5851-1 CVE-2022-3543, CVE-2022-3619, CVE-2022-3623, CVE-2022-3628, CVE-2022-3640, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895, CVE-2022-47940, CVE-2023-0590 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-60.66 https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1033.40 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1015.19 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1025.28 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1028.33 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-60.66 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1029.35 https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1024.26 https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1033.40~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-60.66~20.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-60.66~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.15/5.15.0-1029.35~20.04.1