Gentoo Linux Security Advisory GLSA 200608-25 – Several X.org libraries and X.org itself contain system calls to set*uid() functions, without checking their result. Versions less than 1.0.4-r1 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/49532/glsa-200608-25.txt
Source: https://packetstormsecurity.com/files/49532/Gentoo-Linux-Security-Advisory-200608-25.html