Gentoo Linux Security Advisory GLSA 200609-11 – Queries for SIG records will cause an assertion error if more than one SIG RRset is returned. Additionally, an INSIST failure can be triggered by sending multiple recursive queries if the response to the query arrives after all the clients looking for the response have left the recursion queue. Versions less than 9.3.2-r4 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/50106/glsa-200609-11.txt
Source: https://packetstormsecurity.com/files/50106/Gentoo-Linux-Security-Advisory-200609-11.html