Vulnerability scanners are programs that scan your system to tell you whether you have software installed with known vulnerabilities.
Many of the best well-known scanners interrogate the server’s package database.
Customers using KernelCare to live patch their Linux kernels and repair known vulnerabilities without rebooting were surprised when their scanning tool continued to report their system as having a vulnerable kernel.
The reason for this is that KernelCare does not report kernel patches to local repositories.
So, we have made a small change to KernelCare, modifying the LD_PRELOAD environment variable to correctly return the kernel version to the scanning tools.
If you have any questions on this or other aspects of KernelCare, please get in touch.
KernelCare is a live patching system that patches Linux kernel vulnerabilities automatically, with no reboots. It's used on over 300,000 servers, and has been used to patch servers running for 6+ years. It works with all major Linux distributions, such as RHEL, CentOS, Amazon Linux, and Ubuntu. It also interoperates with common vulnerability scanners such as Nessus, Tenable, Rapid7, and Qualys. To talk with a consultant about how KernelCare might meet your enterprise’s specific needs, contact us directly at email@example.com.