Linux Distros Unpatched Vulnerability : CVE-2016-6172

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PowerDNS aka pdns Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service memory exhaustion and secondary DNS server...

UBUNTU-CVE-2016-6171

Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service memory exhaustion and slave server crash via a large zone transfer for 1 DDNS, 2 AXFR, or 3 IXFR...