Gentoo Linux Security Advisory GLSA 200708-14 – Gregory Shikhman discovered that the default Gentoo setup of NVIDIA drivers creates the /dev/nvidia* with insecure file permissions. Versions less than 100.14.09 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/58696/glsa-200708-14.txt
Source: https://packetstormsecurity.com/files/58696/Gentoo-Linux-Security-Advisory-200708-14.html