This guide contains tips to secure your Gentoo system using the Gentoo Linux Security Advisory (GLSA) checker which is included with every Gentoo installation.
glsa-check is command line tool that checks whether your packages with known security vulnerabilities are installed on your system.
Enter emerge gentoolkit To install gentoolkit.
To begin scanning, enter glsa-check -t all
If glsa-check does not detect any vulnerable packages, the following result will display: This system is not affected by any of the listed GLSAs
If vulnerabilities are detected, GLSA's will be listed as follows:
Enter glsa-check -d <GLSA_IDENTIFIER> to view the advisories for each GLSA or enter glsa-check -d affected to view all advisories at once.