========================================================================== Ubuntu Security Notice USN-6465-1 October 31, 2023
linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gcp-5.15, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 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-azure-fde: Linux kernel for Microsoft Azure CVM cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) 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-nvidia: Linux kernel for NVIDIA systems - linux-oracle: Linux kernel for Oracle Cloud 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-azure-fde-5.15: Linux kernel for Microsoft Azure CVM cloud systems - linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-gkeop-5.15: Linux kernel for Google Container Engine (GKE) systems - linux-hwe-5.15: Linux hardware enablement (HWE) kernel - linux-ibm-5.15: Linux kernel for IBM cloud systems - linux-lowlatency-hwe-5.15: Linux low latency kernel - linux-oracle-5.15: Linux kernel for Oracle Cloud systems Details: Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-31083) Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-3772) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-5.15.0-1032-gkeop 5.15.0-1032.38 linux-image-5.15.0-1040-nvidia 5.15.0-1040.40 linux-image-5.15.0-1040-nvidia-lowlatency 5.15.0-1040.40 linux-image-5.15.0-1042-ibm 5.15.0-1042.45 linux-image-5.15.0-1046-gcp 5.15.0-1046.54 linux-image-5.15.0-1046-kvm 5.15.0-1046.51 linux-image-5.15.0-1047-oracle 5.15.0-1047.53 linux-image-5.15.0-1049-aws 5.15.0-1049.54 linux-image-5.15.0-1051-azure 5.15.0-1051.59 linux-image-5.15.0-1051-azure-fde 5.15.0-1051.59.1 linux-image-5.15.0-88-generic 5.15.0-88.98 linux-image-5.15.0-88-generic-64k 5.15.0-88.98 linux-image-5.15.0-88-generic-lpae 5.15.0-88.98 linux-image-5.15.0-88-lowlatency 5.15.0-88.98 linux-image-5.15.0-88-lowlatency-64k 5.15.0-88.98 linux-image-aws-lts-22.04 5.15.0.1049.48 linux-image-azure-fde-lts-22.04 5.15.0.1051.59.29 linux-image-azure-lts-22.04 5.15.0.1051.47 linux-image-gcp-lts-22.04 5.15.0.1046.42 linux-image-generic 5.15.0.88.85 linux-image-generic-64k 5.15.0.88.85 linux-image-generic-lpae 5.15.0.88.85 linux-image-gkeop 5.15.0.1032.31 linux-image-gkeop-5.15 5.15.0.1032.31 linux-image-ibm 5.15.0.1042.38 linux-image-kvm 5.15.0.1046.42 linux-image-lowlatency 5.15.0.88.90 linux-image-lowlatency-64k 5.15.0.88.90 linux-image-nvidia 5.15.0.1040.40 linux-image-nvidia-lowlatency 5.15.0.1040.40 linux-image-oracle 5.15.0.1047.42 linux-image-oracle-lts-22.04 5.15.0.1047.42 linux-image-virtual 5.15.0.88.85 Ubuntu 20.04 LTS: linux-image-5.15.0-1032-gkeop 5.15.0-1032.38~20.04.1 linux-image-5.15.0-1042-ibm 5.15.0-1042.45~20.04.1 linux-image-5.15.0-1046-gcp 5.15.0-1046.54~20.04.1 linux-image-5.15.0-1047-oracle 5.15.0-1047.53~20.04.1 linux-image-5.15.0-1049-aws 5.15.0-1049.54~20.04.1 linux-image-5.15.0-1051-azure 5.15.0-1051.59~20.04.1 linux-image-5.15.0-1051-azure-fde 5.15.0-1051.59~20.04.1.1 linux-image-5.15.0-88-generic 5.15.0-88.98~20.04.1 linux-image-5.15.0-88-generic-64k 5.15.0-88.98~20.04.1 linux-image-5.15.0-88-generic-lpae 5.15.0-88.98~20.04.1 linux-image-5.15.0-88-lowlatency 5.15.0-88.98~20.04.1 linux-image-5.15.0-88-lowlatency-64k 5.15.0-88.98~20.04.1 linux-image-aws 5.15.0.1049.54~20.04.37 linux-image-azure 5.15.0.1051.59~20.04.40 linux-image-azure-cvm 5.15.0.1051.59~20.04.40 linux-image-azure-fde 5.15.0.1051.59~20.04.1.29 linux-image-gcp 5.15.0.1046.54~20.04.1 linux-image-generic-64k-hwe-20.04 5.15.0.88.98~20.04.46 linux-image-generic-hwe-20.04 5.15.0.88.98~20.04.46 linux-image-generic-lpae-hwe-20.04 5.15.0.88.98~20.04.46 linux-image-gkeop-5.15 5.15.0.1032.38~20.04.28 linux-image-ibm 5.15.0.1042.45~20.04.14 linux-image-lowlatency-64k-hwe-20.04 5.15.0.88.98~20.04.43 linux-image-lowlatency-hwe-20.04 5.15.0.88.98~20.04.43 linux-image-oem-20.04 5.15.0.88.98~20.04.46 linux-image-oem-20.04b 5.15.0.88.98~20.04.46 linux-image-oem-20.04c 5.15.0.88.98~20.04.46 linux-image-oem-20.04d 5.15.0.88.98~20.04.46 linux-image-oracle 5.15.0.1047.53~20.04.1 linux-image-virtual-hwe-20.04 5.15.0.88.98~20.04.46 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-6465-1 CVE-2023-31083, CVE-2023-3772 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-88.98 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1049.54 https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1051.59 https://launchpad.net/ubuntu/+source/linux-azure-fde/5.15.0-1051.59.1 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1046.54 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1032.38 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1042.45 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1046.51 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-88.98 https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1040.40 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1047.53 https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1049.54~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1051.59~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-fde-5.15/5.15.0-1051.59~20.04.1.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.15/5.15.0-1046.54~20.04.1 https://launchpad.net/ubuntu/+source/linux-gkeop-5.15/5.15.0-1032.38~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-88.98~20.04.1 https://launchpad.net/ubuntu/+source/linux-ibm-5.15/5.15.0-1042.45~20.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-88.98~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.15/5.15.0-1047.53~20.04.1
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