========================================================================== Ubuntu Security Notice USN-6127-1 May 31, 2023 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-hwe-5.19, 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 22.10 - 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-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-gke: Linux kernel for Google Container Engine (GKE) systems - linux-gkeop: Linux kernel for Google Container Engine (GKE) systems - linux-hwe-5.19: Linux hardware enablement (HWE) kernel - 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-oracle-5.15: Linux kernel for Oracle Cloud systems Details: Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, 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-2023-32233) Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-31436) Reima Ishii discovered that the nested KVM implementation for Intel x86 processors in the Linux kernel did not properly validate control registers in certain situations. An attacker in a guest VM could use this to cause a denial of service (guest crash). (CVE-2023-30456) It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform data buffer size validation 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 expose sensitive information. (CVE-2023-1380) Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-2612) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.10: linux-image-5.19.0-1019-raspi 5.19.0-1019.26 linux-image-5.19.0-1019-raspi-nolpae 5.19.0-1019.26 linux-image-5.19.0-1023-ibm 5.19.0-1023.25 linux-image-5.19.0-1024-kvm 5.19.0-1024.25 linux-image-5.19.0-1024-oracle 5.19.0-1024.27 linux-image-5.19.0-1025-gcp 5.19.0-1025.27 linux-image-5.19.0-1025-lowlatency 5.19.0-1025.26 linux-image-5.19.0-1025-lowlatency-64k 5.19.0-1025.26 linux-image-5.19.0-1026-aws 5.19.0-1026.27 linux-image-5.19.0-1027-azure 5.19.0-1027.30 linux-image-5.19.0-43-generic 5.19.0-43.44 linux-image-5.19.0-43-generic-64k 5.19.0-43.44 linux-image-5.19.0-43-generic-lpae 5.19.0-43.44 linux-image-aws 5.19.0.1026.23 linux-image-azure 5.19.0.1027.22 linux-image-gcp 5.19.0.1025.21 linux-image-generic 5.19.0.43.39 linux-image-generic-64k 5.19.0.43.39 linux-image-generic-lpae 5.19.0.43.39 linux-image-ibm 5.19.0.1023.20 linux-image-kvm 5.19.0.1024.21 linux-image-lowlatency 5.19.0.1025.21 linux-image-lowlatency-64k 5.19.0.1025.21 linux-image-oracle 5.19.0.1024.20 linux-image-raspi 5.19.0.1019.18 linux-image-raspi-nolpae 5.19.0.1019.18 linux-image-virtual 5.19.0.43.39 Ubuntu 22.04 LTS: linux-image-5.15.0-1021-gkeop 5.15.0-1021.26 linux-image-5.15.0-1031-ibm 5.15.0-1031.34 linux-image-5.15.0-1034-gke 5.15.0-1034.39 linux-image-5.15.0-1034-kvm 5.15.0-1034.39 linux-image-5.15.0-1035-gcp 5.15.0-1035.43 linux-image-5.15.0-1036-oracle 5.15.0-1036.42 linux-image-5.15.0-1037-aws 5.15.0-1037.41 linux-image-5.15.0-1039-azure 5.15.0-1039.46 linux-image-5.15.0-73-generic 5.15.0-73.80 linux-image-5.15.0-73-generic-64k 5.15.0-73.80 linux-image-5.15.0-73-generic-lpae 5.15.0-73.80 linux-image-5.15.0-73-lowlatency 5.15.0-73.80 linux-image-5.15.0-73-lowlatency-64k 5.15.0-73.80 linux-image-5.19.0-43-generic 5.19.0-43.44~22.04.1 linux-image-5.19.0-43-generic-64k 5.19.0-43.44~22.04.1 linux-image-5.19.0-43-generic-lpae 5.19.0-43.44~22.04.1 linux-image-aws-lts-22.04 5.15.0.1037.36 linux-image-azure 5.15.0.1039.35 linux-image-azure-lts-22.04 5.15.0.1039.35 linux-image-gcp-lts-22.04 5.15.0.1035.31 linux-image-generic 5.15.0.73.71 linux-image-generic-64k 5.15.0.73.71 linux-image-generic-64k-hwe-22.04 5.19.0.43.44~22.04.17 linux-image-generic-hwe-22.04 5.19.0.43.44~22.04.17 linux-image-generic-lpae 5.15.0.73.71 linux-image-generic-lpae-hwe-22.04 5.19.0.43.44~22.04.17 linux-image-gke 5.15.0.1034.33 linux-image-gke-5.15 5.15.0.1034.33 linux-image-gkeop 5.15.0.1021.20 linux-image-gkeop-5.15 5.15.0.1021.20 linux-image-ibm 5.15.0.1031.27 linux-image-kvm 5.15.0.1034.30 linux-image-lowlatency 5.15.0.73.78 linux-image-lowlatency-64k 5.15.0.73.78 linux-image-oracle 5.15.0.1036.31 linux-image-virtual 5.15.0.73.71 linux-image-virtual-hwe-22.04 5.19.0.43.44~22.04.17 Ubuntu 20.04 LTS: linux-image-5.15.0-1034-gke 5.15.0-1034.39~20.04.1 linux-image-5.15.0-1035-gcp 5.15.0-1035.43~20.04.1 linux-image-5.15.0-1036-oracle 5.15.0-1036.42~20.04.1 linux-image-5.15.0-1037-aws 5.15.0-1037.41~20.04.1 linux-image-5.15.0-1039-azure 5.15.0-1039.46~20.04.1 linux-image-5.15.0-73-generic 5.15.0-73.80~20.04.1 linux-image-5.15.0-73-generic-64k 5.15.0-73.80~20.04.1 linux-image-5.15.0-73-generic-lpae 5.15.0-73.80~20.04.1 linux-image-5.15.0-73-lowlatency 5.15.0-73.80~20.04.1 linux-image-5.15.0-73-lowlatency-64k 5.15.0-73.80~20.04.1 linux-image-aws 5.15.0.1037.41~20.04.26 linux-image-azure 5.15.0.1039.46~20.04.29 linux-image-azure-cvm 5.15.0.1039.46~20.04.29 linux-image-gcp 5.15.0.1035.43~20.04.1 linux-image-generic-64k-hwe-20.04 5.15.0.73.80~20.04.34 linux-image-generic-hwe-20.04 5.15.0.73.80~20.04.34 linux-image-generic-lpae-hwe-20.04 5.15.0.73.80~20.04.34 linux-image-gke-5.15 5.15.0.1034.39~20.04.1 linux-image-lowlatency-64k-hwe-20.04 5.15.0.73.80~20.04.31 linux-image-lowlatency-hwe-20.04 5.15.0.73.80~20.04.31 linux-image-oem-20.04 5.15.0.73.80~20.04.34 linux-image-oem-20.04b 5.15.0.73.80~20.04.34 linux-image-oem-20.04c 5.15.0.73.80~20.04.34 linux-image-oem-20.04d 5.15.0.73.80~20.04.34 linux-image-oracle 5.15.0.1036.42~20.04.1 linux-image-virtual-hwe-20.04 5.15.0.73.80~20.04.34 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-6127-1 CVE-2023-1380, CVE-2023-2612, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233 Package Information: https://launchpad.net/ubuntu/+source/linux/5.19.0-43.44 https://launchpad.net/ubuntu/+source/linux-aws/5.19.0-1026.27 https://launchpad.net/ubuntu/+source/linux-azure/5.19.0-1027.30 https://launchpad.net/ubuntu/+source/linux-gcp/5.19.0-1025.27 https://launchpad.net/ubuntu/+source/linux-ibm/5.19.0-1023.25 https://launchpad.net/ubuntu/+source/linux-kvm/5.19.0-1024.25 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.19.0-1025.26 https://launchpad.net/ubuntu/+source/linux-oracle/5.19.0-1024.27 https://launchpad.net/ubuntu/+source/linux-raspi/5.19.0-1019.26 https://launchpad.net/ubuntu/+source/linux/5.15.0-73.80 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1037.41 https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1039.46 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1035.43 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1034.39 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1021.26 https://launchpad.net/ubuntu/+source/linux-hwe-5.19/5.19.0-43.44~22.04.1 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1031.34 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1034.39 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-73.80 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1036.42 https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1037.41~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1039.46~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.15/5.15.0-1035.43~20.04.1 https://launchpad.net/ubuntu/+source/linux-gke-5.15/5.15.0-1034.39~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-73.80~20.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-73.80~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.15/5.15.0-1036.42~20.04.1