Gentoo Linux Security Advisory GLSA 200605-02 – X.Org miscalculates the size of a buffer in the XRender extension. Versions less than 6.8.2-r7 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/46052/glsa-200605-02.txt
Source: https://packetstormsecurity.com/files/46052/Gentoo-Linux-Security-Advisory-200605-2.html