========================================================================== Ubuntu Security Notice USN-5692-1 October 19, 2022 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oem-5.14, linux-oracle, 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-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-gke: Linux kernel for Google Container Engine (GKE) 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-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.15: Linux kernel for Microsoft Azure cloud systems - linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-5.15: Linux kernel for Google Container Engine (GKE) systems - linux-hwe-5.15: Linux hardware enablement (HWE) kernel - linux-lowlatency-hwe-5.15: Linux low latency kernel - linux-oem-5.14: Linux kernel for OEM systems Details: David Bouman and Billy Jheng Bing Jhong discovered that a race condition existed in the io_uring subsystem 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-2022-2602) Sönke Huster discovered that an integer overflow vulnerability existed in the WiFi driver stack in the Linux kernel, leading to a buffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-41674) Sönke Huster discovered that a use-after-free vulnerability existed in the WiFi driver stack in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42719) Sönke Huster discovered that the WiFi driver stack in the Linux kernel did not properly perform reference counting in some situations, 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-2022-42720) Sönke Huster discovered that the WiFi driver stack in the Linux kernel did not properly handle BSSID/SSID lists in some situations. A physically proximate attacker could use this to cause a denial of service (infinite loop). (CVE-2022-42721) Sönke Huster discovered that the WiFi driver stack in the Linux kernel contained a NULL pointer dereference vulnerability in certain situations. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-42722) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-5.15.0-1007-gkeop 5.15.0-1007.10 linux-image-5.15.0-1017-ibm 5.15.0-1017.20 linux-image-5.15.0-1017-raspi 5.15.0-1017.19 linux-image-5.15.0-1017-raspi-nolpae 5.15.0-1017.19 linux-image-5.15.0-1019-gke 5.15.0-1019.23 linux-image-5.15.0-1020-kvm 5.15.0-1020.24 linux-image-5.15.0-1021-gcp 5.15.0-1021.28 linux-image-5.15.0-1021-oracle 5.15.0-1021.27 linux-image-5.15.0-1022-aws 5.15.0-1022.26 linux-image-5.15.0-1022-azure 5.15.0-1022.27 linux-image-5.15.0-52-generic 5.15.0-52.58 linux-image-5.15.0-52-generic-64k 5.15.0-52.58 linux-image-5.15.0-52-generic-lpae 5.15.0-52.58 linux-image-5.15.0-52-lowlatency 5.15.0-52.58 linux-image-5.15.0-52-lowlatency-64k 5.15.0-52.58 linux-image-aws 5.15.0.1022.22 linux-image-aws-lts-22.04 5.15.0.1022.22 linux-image-azure 5.15.0.1022.21 linux-image-azure-lts-22.04 5.15.0.1022.21 linux-image-gcp 5.15.0.1021.18 linux-image-generic 5.15.0.52.52 linux-image-generic-64k 5.15.0.52.52 linux-image-generic-64k-hwe-22.04 5.15.0.52.52 linux-image-generic-hwe-22.04 5.15.0.52.52 linux-image-generic-lpae 5.15.0.52.52 linux-image-generic-lpae-hwe-22.04 5.15.0.52.52 linux-image-gke 5.15.0.1019.20 linux-image-gke-5.15 5.15.0.1019.20 linux-image-gkeop 5.15.0.1007.8 linux-image-gkeop-5.15 5.15.0.1007.8 linux-image-ibm 5.15.0.1017.15 linux-image-kvm 5.15.0.1020.18 linux-image-lowlatency 5.15.0.52.47 linux-image-lowlatency-64k 5.15.0.52.47 linux-image-lowlatency-64k-hwe-22.04 5.15.0.52.47 linux-image-lowlatency-hwe-22.04 5.15.0.52.47 linux-image-oracle 5.15.0.1021.18 linux-image-raspi 5.15.0.1017.16 linux-image-raspi-nolpae 5.15.0.1017.16 linux-image-virtual 5.15.0.52.52 linux-image-virtual-hwe-22.04 5.15.0.52.52 Ubuntu 20.04 LTS: linux-image-5.14.0-1054-oem 5.14.0-1054.61 linux-image-5.15.0-1019-gke 5.15.0-1019.23~20.04.1 linux-image-5.15.0-1021-gcp 5.15.0-1021.28~20.04.1 linux-image-5.15.0-1022-aws 5.15.0-1022.26~20.04.1 linux-image-5.15.0-1022-azure 5.15.0-1022.27~20.04.1 linux-image-5.15.0-52-generic 5.15.0-52.58~20.04.1 linux-image-5.15.0-52-generic-64k 5.15.0-52.58~20.04.1 linux-image-5.15.0-52-generic-lpae 5.15.0-52.58~20.04.1 linux-image-5.15.0-52-lowlatency 5.15.0-52.58~20.04.1 linux-image-5.15.0-52-lowlatency-64k 5.15.0-52.58~20.04.1 linux-image-aws 5.15.0.1022.26~20.04.14 linux-image-azure 5.15.0.1022.27~20.04.15 linux-image-gcp 5.15.0.1021.28~20.04.1 linux-image-generic-64k-hwe-20.04 5.15.0.52.58~20.04.20 linux-image-generic-hwe-20.04 5.15.0.52.58~20.04.20 linux-image-generic-lpae-hwe-20.04 5.15.0.52.58~20.04.20 linux-image-gke-5.15 5.15.0.1019.23~20.04.1 linux-image-lowlatency-64k-hwe-20.04 5.15.0.52.58~20.04.18 linux-image-lowlatency-hwe-20.04 5.15.0.52.58~20.04.18 linux-image-oem-20.04 5.14.0.1054.52 linux-image-oem-20.04b 5.14.0.1054.52 linux-image-oem-20.04c 5.14.0.1054.52 linux-image-oem-20.04d 5.14.0.1054.52 linux-image-virtual-hwe-20.04 5.15.0.52.58~20.04.20 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-5692-1 CVE-2022-2602, CVE-2022-41674, CVE-2022-42719, CVE-2022-42720, CVE-2022-42721, CVE-2022-42722 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-52.58 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1022.26 https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1022.27 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1021.28 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1019.23 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1007.10 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1017.20 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1020.24 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-52.58 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1021.27 https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1017.19 https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1022.26~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1022.27~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.15/5.15.0-1021.28~20.04.1 https://launchpad.net/ubuntu/+source/linux-gke-5.15/5.15.0-1019.23~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-52.58~20.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-52.58~20.04.1 https://launchpad.net/ubuntu/+source/linux-oem-5.14/5.14.0-1054.61