========================================================================== Ubuntu Security Notice USN-7428-1 April 09, 2025 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 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-4.15: Linux kernel for Microsoft Azure Cloud systems - linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe: Linux hardware enablement (HWE) kernel Details: Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest. (CVE-2022-23041) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - HID subsystem; - Network drivers; - Mellanox network drivers; - SCSI subsystem; - SuperH / SH-Mobile drivers; - File systems infrastructure; - Ext4 file system; - JFS file system; - IP tunnels definitions; - Network namespace; - BPF subsystem; - Networking core; - HSR network protocol; - IPv4 networking; - IPv6 networking; - Network traffic control; (CVE-2024-56615, CVE-2024-56600, CVE-2025-21700, CVE-2024-56658, CVE-2024-35960, CVE-2024-50265, CVE-2025-21702, CVE-2024-53227, CVE-2024-53165, CVE-2024-50167, CVE-2024-26863, CVE-2024-35973, CVE-2024-46826, CVE-2021-47119, CVE-2024-50302, CVE-2024-49952, CVE-2021-47101, CVE-2024-49948, CVE-2024-56595) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS linux-image-4.15.0-1141-oracle 4.15.0-1141.152 Available with Ubuntu Pro linux-image-4.15.0-1162-kvm 4.15.0-1162.167 Available with Ubuntu Pro linux-image-4.15.0-1172-gcp 4.15.0-1172.189 Available with Ubuntu Pro linux-image-4.15.0-1179-aws 4.15.0-1179.192 Available with Ubuntu Pro linux-image-4.15.0-1187-azure 4.15.0-1187.202 Available with Ubuntu Pro linux-image-4.15.0-236-generic 4.15.0-236.248 Available with Ubuntu Pro linux-image-4.15.0-236-lowlatency 4.15.0-236.248 Available with Ubuntu Pro linux-image-aws-lts-18.04 4.15.0.1179.177 Available with Ubuntu Pro linux-image-azure-lts-18.04 4.15.0.1187.155 Available with Ubuntu Pro linux-image-gcp-lts-18.04 4.15.0.1172.185 Available with Ubuntu Pro linux-image-generic 4.15.0.236.220 Available with Ubuntu Pro linux-image-kvm 4.15.0.1162.153 Available with Ubuntu Pro linux-image-lowlatency 4.15.0.236.220 Available with Ubuntu Pro linux-image-oracle-lts-18.04 4.15.0.1141.146 Available with Ubuntu Pro linux-image-virtual 4.15.0.236.220 Available with Ubuntu Pro Ubuntu 16.04 LTS linux-image-4.15.0-1141-oracle 4.15.0-1141.152~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-1172-gcp 4.15.0-1172.189~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-1179-aws 4.15.0-1179.192~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-1187-azure 4.15.0-1187.202~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-236-generic 4.15.0-236.248~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-236-lowlatency 4.15.0-236.248~16.04.1 Available with Ubuntu Pro linux-image-aws-hwe 4.15.0.1179.192~16.04.1 Available with Ubuntu Pro linux-image-azure 4.15.0.1187.202~16.04.1 Available with Ubuntu Pro linux-image-gcp 4.15.0.1172.189~16.04.1 Available with Ubuntu Pro linux-image-generic-hwe-16.04 4.15.0.236.248~16.04.1 Available with Ubuntu Pro linux-image-gke 4.15.0.1172.189~16.04.1 Available with Ubuntu Pro linux-image-lowlatency-hwe-16.04 4.15.0.236.248~16.04.1 Available with Ubuntu Pro linux-image-oem 4.15.0.236.248~16.04.1 Available with Ubuntu Pro linux-image-oracle 4.15.0.1141.152~16.04.1 Available with Ubuntu Pro linux-image-virtual-hwe-16.04 4.15.0.236.248~16.04.1 Available with Ubuntu Pro Ubuntu 14.04 LTS linux-image-4.15.0-1187-azure 4.15.0-1187.202~14.04.1 Available with Ubuntu Pro linux-image-azure 4.15.0.1187.202~14.04.1 Available with Ubuntu Pro 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-7428-1 CVE-2021-47101, CVE-2021-47119, CVE-2022-23041, CVE-2024-26863, CVE-2024-35960, CVE-2024-35973, CVE-2024-46826, CVE-2024-49948, CVE-2024-49952, CVE-2024-50167, CVE-2024-50265, CVE-2024-50302, CVE-2024-53165, CVE-2024-53227, CVE-2024-56595, CVE-2024-56600, CVE-2024-56615, CVE-2024-56658, CVE-2025-21700, CVE-2025-21702