Summary of Linux Kernel Updates for Ubuntu
On September 17, 2025, three Ubuntu Security Notices (USN) were issued to address vulnerabilities in various Linux kernel versions across multiple Ubuntu releases, including versions 14.04 LTS, 16.04 LTS, 18.04 LTS, 24.04 LTS, and 25.04. The updates focus on correcting security flaws related to media drivers, SPI subsystems, USB core drivers, NILFS2 file systems, IPv6 networking, and network traffic control, encompassing vulnerabilities identified as CVE-2023-52477 through CVE-2025-38350.
2. USN-7722-2: This notice addresses vulnerabilities impacting Ubuntu 24.04 LTS and 25.04, specifically related to the Linux kernel versions used in Oracle and Google Cloud systems. It contains fixes for security issues in network traffic control and instructs users to update their packages and reboot their systems.
3. USN-7755-2: Focused on Ubuntu 18.04 LTS, this notice deals with Linux kernel vulnerabilities specific to FIPS (Federal Information Processing Standards) compliant systems. The updates correct flaws in similar subsystems highlighted in the previous notices. Again, users must perform updates and reboot their systems.
- Regular Updates: Continuously check for and apply security updates to the kernel and other software packages.
- Backup Systems: Regularly back up critical data to prevent loss during system updates or potential attacks.
- Monitor Security Notices: Stay informed about future security notices to address vulnerabilities promptly as they arise.
- Kernel Module Management: Be aware that updates may require recompiling third-party kernel modules, so plan accordingly.
By adhering to best practices in system maintenance and security, Ubuntu users can enhance their overall system integrity and reduce the risk of exploitation from vulnerabilities
On September 17, 2025, three Ubuntu Security Notices (USN) were issued to address vulnerabilities in various Linux kernel versions across multiple Ubuntu releases, including versions 14.04 LTS, 16.04 LTS, 18.04 LTS, 24.04 LTS, and 25.04. The updates focus on correcting security flaws related to media drivers, SPI subsystems, USB core drivers, NILFS2 file systems, IPv6 networking, and network traffic control, encompassing vulnerabilities identified as CVE-2023-52477 through CVE-2025-38350.
Details of Each Security Notice:
1. USN-7755-1: This notice highlights several vulnerabilities found in the Linux kernel affecting Ubuntu 14.04 LTS, 16.04 LTS, and 18.04 LTS. Key improvements were made in subsystems such as media drivers and network traffic control. Users are advised to update to specific package versions and reboot their systems to apply the changes.2. USN-7722-2: This notice addresses vulnerabilities impacting Ubuntu 24.04 LTS and 25.04, specifically related to the Linux kernel versions used in Oracle and Google Cloud systems. It contains fixes for security issues in network traffic control and instructs users to update their packages and reboot their systems.
3. USN-7755-2: Focused on Ubuntu 18.04 LTS, this notice deals with Linux kernel vulnerabilities specific to FIPS (Federal Information Processing Standards) compliant systems. The updates correct flaws in similar subsystems highlighted in the previous notices. Again, users must perform updates and reboot their systems.
Future Considerations:
With these recent updates, users should prioritize maintaining their systems to ensure they are protected against potential threats. Here are some recommendations:- Regular Updates: Continuously check for and apply security updates to the kernel and other software packages.
- Backup Systems: Regularly back up critical data to prevent loss during system updates or potential attacks.
- Monitor Security Notices: Stay informed about future security notices to address vulnerabilities promptly as they arise.
- Kernel Module Management: Be aware that updates may require recompiling third-party kernel modules, so plan accordingly.
By adhering to best practices in system maintenance and security, Ubuntu users can enhance their overall system integrity and reduce the risk of exploitation from vulnerabilities
Linux Kernel updates for Ubuntu
Three Ubuntu Security Notices (USN) were released: USN-7755-1, USN-7722-2, and USN-7755-2. These notices address vulnerabilities in various Linux kernel versions affecting different Ubuntu releases, including Ubuntu 18.04 LTS, Ubuntu 16.04 LTS, Ubuntu 14.04 LTS, Ubuntu 25.04, and Ubuntu 24.04 LTS. The updates correct flaws in media drivers, SPI subsystems, USB core drivers, NILFS2 file systems, IPv6 networking, and network traffic control, among other areas (CVE-2023-52477 through CVE-2025-38350).
[USN-7755-1] Linux kernel vulnerabilities
[USN-7722-2] Linux kernel vulnerability
[USN-7755-2] Linux kernel (FIPS) vulnerabilities
