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Ubuntu 22.04 LTS: USN-7550-4 critical: Linux kernel Azure CVM issues

Several security issues were fixed in the Linux kernel.. ========================================================================== Ubuntu Security Notice USN-7550-4 June 04, 2025 linux-azure-fde vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-azure-fde: Linux kernel for Microsoft Azure CVM cloud systems Details: 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: - GPU drivers; - Sun RPC protocol; (CVE-2024-53168, CVE-2024-56551, CVE-2024-56608) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS linux-image-5.15.0-1090-azure-fde 5.15.0-1090.99.1 linux-image-azure-fde-lts-22.04 5.15.0.1090.99.67 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-7550-4 https://ubuntu.com/security/notices/USN-7550-3 https://ubuntu.com/security/notices/USN-7550-2 https://ubuntu.com/security/notices/USN-7550-1 CVE-2024-53168, CVE-2024-56551, CVE-2024-56608 Package Information: https://launchpad.net/ubuntu/+source/linux-azure-fde/5.15.0-1090.99.1 . Patches addressing various vulnerabilities in the Ubuntu 22.04 LTS kernel specific to Azure Cloud Virtual Machineinstances.. ubuntu kernel security, azure cloud Linux, linux update, Ubuntu 22.04 LTS, kernel vulnerabilities. . Severity: Critical. LinuxSecurity.com Team

Jun 04, 2025 •Critical Ubuntu