Gentoo Linux Security Advisory GLSA 200611-23 – Sebastian Krahmer of the SuSE Security Team discovered that the System.CodeDom.Compiler classes of Mono create temporary files with insecure permissions. Versions less than 1.1.13.8.1 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/52618/glsa-200611-23.txt
Source: https://packetstormsecurity.com/files/52618/Gentoo-Linux-Security-Advisory-200611-23.html