Lynis Security Controls

KRNL-5788 - Linux kernel update available


This control is for systems based on Debian/Ubuntu and tests the availability of a new Linux kernel. When an update is available, it's usually a security related update or an update to fix serious flaws.



How to solve

When a kernel update is available for Debian/Ubuntu based systems, they are usually security related. Determine if the related update can be applied and the system scheduled to be rebooted.

Perform daily health checks of your environment, learn in-depth system hardening, and protect your systems better.

Upgrade to Lynis Enterprise

Linux and Unix System Hardening

This information is provided as part of the Lynis community project. It is related to Lynis control KRNL-5788. All information should be considered as-is, without guarantees. Any advice or snippets should be tested before implementing in production environments.


Lynis is a technical security audit tool for Unix flavors like Linux, macOS, AIX, Solaris, and *BSD. It is open source software and free to use. The project has an active community, including open development via GitHub.

Lynis Enterprise

Need more advanced features, like vulnerability scanning, or reporting installed software packages? Lynis Enterprise will collect more data and present it with an easy to use web interface.

Gain additional benefits: automating security audits, reporting, and the implementation of related security measures.

Lynis Enterprise includes
  • Centralized management
  • Prioritized plans
  • Reporting
  • Dashboards
  • Integration (API)
  • Improvement snippets for tools like Ansible, Chef, Cfengine, Puppet, and SaltStack

Take the Tour