========================================================================== Ubuntu Security Notice USN-6025-1 April 19, 2023 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, 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-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-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-lowlatency-hwe-5.15: Linux low latency kernel - linux-oracle-5.15: Linux kernel for Oracle Cloud systems Details: It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel contained 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-2023-1281) It was discovered that the OverlayFS implementation in the Linux kernel did not properly handle copy up operation in some conditions. A local attacker could possibly use this to gain elevated privileges. (CVE-2023-0386) Haowei Yan discovered that a race condition existed in the Layer 2 Tunneling Protocol (L2TP) implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-4129) It was discovered that the network queuing discipline implementation in the Linux kernel contained a null pointer dereference in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-47929) It was discovered that the NTFS file system implementation in the Linux kernel contained a null pointer dereference in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-4842) Kyle Zeng discovered that the IPv6 implementation in the Linux kernel contained a NULL pointer dereference vulnerability in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-0394) It was discovered that the Human Interface Device (HID) support driver in the Linux kernel contained a type confusion vulnerability in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-1073) It was discovered that a memory leak existed in the SCTP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2023-1074) It was discovered that the NFS implementation in the Linux kernel did not properly handle pending tasks in some situations. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-1652) Lianhui Tang discovered that the MPLS implementation in the Linux kernel did not properly handle certain sysctl allocation failure conditions, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2023-26545) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-5.15.0-1018-gkeop 5.15.0-1018.23 linux-image-5.15.0-1027-raspi 5.15.0-1027.29 linux-image-5.15.0-1027-raspi-nolpae 5.15.0-1027.29 linux-image-5.15.0-1028-ibm 5.15.0-1028.31 linux-image-5.15.0-1031-gke 5.15.0-1031.36 linux-image-5.15.0-1031-kvm 5.15.0-1031.36 linux-image-5.15.0-1032-gcp 5.15.0-1032.40 linux-image-5.15.0-1033-oracle 5.15.0-1033.39 linux-image-5.15.0-1034-aws 5.15.0-1034.38 linux-image-5.15.0-1036-azure 5.15.0-1036.43 linux-image-5.15.0-1036-azure-fde 5.15.0-1036.43.1 linux-image-5.15.0-70-generic 5.15.0-70.77 linux-image-5.15.0-70-generic-64k 5.15.0-70.77 linux-image-5.15.0-70-generic-lpae 5.15.0-70.77 linux-image-5.15.0-70-lowlatency 5.15.0-70.77 linux-image-5.15.0-70-lowlatency-64k 5.15.0-70.77 linux-image-aws-lts-22.04 5.15.0.1034.33 linux-image-azure 5.15.0.1036.32 linux-image-azure-fde 5.15.0.1036.43.13 linux-image-azure-lts-22.04 5.15.0.1036.32 linux-image-gcp 5.15.0.1032.27 linux-image-generic 5.15.0.70.68 linux-image-generic-64k 5.15.0.70.68 linux-image-generic-lpae 5.15.0.70.68 linux-image-gke 5.15.0.1031.30 linux-image-gke-5.15 5.15.0.1031.30 linux-image-gkeop 5.15.0.1018.17 linux-image-gkeop-5.15 5.15.0.1018.17 linux-image-ibm 5.15.0.1028.24 linux-image-kvm 5.15.0.1031.27 linux-image-lowlatency 5.15.0.70.75 linux-image-lowlatency-64k 5.15.0.70.75 linux-image-oracle 5.15.0.1033.28 linux-image-raspi 5.15.0.1027.24 linux-image-raspi-nolpae 5.15.0.1027.24 linux-image-virtual 5.15.0.70.68 Ubuntu 20.04 LTS: linux-image-5.15.0-1031-gke 5.15.0-1031.36~20.04.1 linux-image-5.15.0-1032-gcp 5.15.0-1032.40~20.04.1 linux-image-5.15.0-1033-oracle 5.15.0-1033.39~20.04.1 linux-image-5.15.0-1034-aws 5.15.0-1034.38~20.04.1 linux-image-5.15.0-1036-azure 5.15.0-1036.43~20.04.1 linux-image-5.15.0-70-lowlatency 5.15.0-70.77~20.04.1 linux-image-5.15.0-70-lowlatency-64k 5.15.0-70.77~20.04.1 linux-image-aws 5.15.0.1034.38~20.04.23 linux-image-azure 5.15.0.1036.43~20.04.26 linux-image-azure-cvm 5.15.0.1036.43~20.04.26 linux-image-gcp 5.15.0.1032.40~20.04.1 linux-image-gke-5.15 5.15.0.1031.36~20.04.1 linux-image-lowlatency-64k-hwe-20.04 5.15.0.70.77~20.04.28 linux-image-lowlatency-hwe-20.04 5.15.0.70.77~20.04.28 linux-image-oracle 5.15.0.1033.39~20.04.1 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-6025-1 CVE-2022-4129, CVE-2022-47929, CVE-2022-4842, CVE-2023-0386, CVE-2023-0394, CVE-2023-1073, CVE-2023-1074, CVE-2023-1281, CVE-2023-1652, CVE-2023-26545 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-70.77 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1034.38 https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1036.43 https://launchpad.net/ubuntu/+source/linux-azure-fde/5.15.0-1036.43.1 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1032.40 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1031.36 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1018.23 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1028.31 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1031.36 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-70.77 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1033.39 https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1027.29 https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1034.38~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1036.43~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.15/5.15.0-1032.40~20.04.1 https://launchpad.net/ubuntu/+source/linux-gke-5.15/5.15.0-1031.36~20.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-70.77~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.15/5.15.0-1033.39~20.04.1