Log Message:
powerdns: updated to 4.1.5

4.1.5:
This release fixes the following security advisories:
* PowerDNS Security Advisory 2018-03 (CVE-2018-10851)
* PowerDNS Security Advisory 2018-05 (CVE-2018-14626)

Improvements
* Apply alias scopemask after chasing
* Release memory in case of error in the openssl ecdsa constructor
* Switch to devtoolset 7 for el6

Bug Fixes
* Fix compilation with libressl 2.7.0+
* Actually truncate truncated responses
* Crafted zone record can cause a denial of service (CVE-2018-10851, PowerDNS \ 
Security Advisory 2018-03)
* Packet cache pollution via crafted query (CVE-2018-14626, PowerDNS Security \ 
Advisory 2018-05)