========================================================================== Ubuntu Security Notice USN-5876-1 February 15, 2023 linux-aws, linux-aws-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-intel-iotg 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-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-fde: Linux kernel for Microsoft Azure CVM cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-intel-iotg: Linux kernel for Intel IoT platforms - linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) 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-5.15.0-1025-intel-iotg 5.15.0-1025.30 linux-image-5.15.0-1029-gcp 5.15.0-1029.36 linux-image-5.15.0-1030-aws 5.15.0-1030.34 linux-image-5.15.0-1033-azure-fde 5.15.0-1033.40.1 linux-image-aws 5.15.0.1030.28 linux-image-aws-lts-22.04 5.15.0.1030.28 linux-image-azure-fde 5.15.0.1033.40.10 linux-image-gcp 5.15.0.1029.24 linux-image-intel-iotg 5.15.0.1025.24 Ubuntu 20.04 LTS: linux-image-5.15.0-1029-gcp 5.15.0-1029.36~20.04.1 linux-image-5.15.0-1030-aws 5.15.0-1030.34~20.04.1 linux-image-aws 5.15.0.1030.34~20.04.19 linux-image-gcp 5.15.0.1029.36~20.04.1 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-5876-1 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-aws/5.15.0-1030.34 https://launchpad.net/ubuntu/+source/linux-azure-fde/5.15.0-1033.40.1 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1029.36 https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1025.30 https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1030.34~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.15/5.15.0-1029.36~20.04.1