Gentoo Linux Security Advisory GLSA 200606-14 – GDM allows a normal user to access the configuration manager. Versions less than 2.8.0.8 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/47352/glsa-200606-14.txt
Source: https://packetstormsecurity.com/files/47352/Gentoo-Linux-Security-Advisory-200606-14.html