Gentoo Linux Security Advisory GLSA 200802-11 – Multiple vulnerabilities have been found in Asterisk. Versions less than 1.2.21.1-r1 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/64079/glsa-200802-11.txt
Source: https://packetstormsecurity.com/files/64079/Gentoo-Linux-Security-Advisory-200802-11.html