Mitigations for Critical c-ares DoS, Code Execution Bug Released

A critical buffer overflow vulnerability has been found in c-ares before 1_16_1 thru 1_17_0 via the function ares_parse_soa_reply in ares_parse_soa_reply.c ( CVE-2020-22217 ). Due to how simple this bug is to exploit and its significant threat to the confidentiality, integrity, and availability of impacted systems, it has received a National Vulnerability Database base score of 9.8 out of 10 (''Critical'' severity).