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Ubuntu 18.04 LTS USN-6973-3 Moderate: Linux Kernel Attack Fixes

Several security issues were fixed in the Linux kernel.. ========================================================================== Ubuntu Security Notice USN-6973-3 August 26, 2024 linux-aws-5.4 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems Details: It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to a null pointer dereference vulnerability. A privileged local attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-24860) 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: - SuperH RISC architecture; - MMC subsystem; - Network drivers; - SCSI drivers; - GFS2 file system; - IPv4 networking; - IPv6 networking; - HD-audio driver; (CVE-2024-26830, CVE-2024-39484, CVE-2024-36901, CVE-2024-26929, CVE-2024-26921, CVE-2021-46926, CVE-2023-52629, CVE-2023-52760) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS linux-image-5.4.0-1131-aws 5.4.0-1131.141~18.04.1 Available with Ubuntu Pro linux-image-aws 5.4.0.1131.141~18.04.1 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 youmanually 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-6973-3 https://ubuntu.com/security/notices/USN-6973-2 https://ubuntu.com/security/notices/USN-6973-1 CVE-2021-46926, CVE-2023-52629, CVE-2023-52760, CVE-2024-24860, CVE-2024-26830, CVE-2024-26921, CVE-2024-26929, CVE-2024-36901, CVE-2024-39484 . The Ubuntu Security Notice USN-6974-2 addresses several vulnerabilities related to the Linux kernel and outlines their corresponding patches for various cloud environments.. Linux Kernel Issues, AWS Security Updates, Ubuntu Advisory. . Severity: Important. LinuxSecurity.com Team

Aug 26, 2024 •Important Ubuntu