Security update for pdns-recursor

Open Source Vulnerabilities openSUSE-SU-2018:4062-1

This update for pdns-recursor to version 4.1.8 fixes the following issues: Security issues fixed: - CVE-2018-10851: Fixed denial of service via crafted zone record or crafted answer (bsc#1114157). - CVE-2018-14644: Fixed denial of service via crafted query for meta-types (bsc#1114170). - CVE-2018-14626: Fixed packet cache pollution via crafted query (bsc#1114169). - CVE-2018-16855: Fixed case where a crafted query could cause a denial of service (bsc#1116592) Non-security issues fixed: - Fixed build failure with Boost 1.67.0 (bsc#1089814). - Revert ‘Keep the EDNS status of a server on FormErr with EDNS’ - Refuse queries for all meta-types For more details about this update, refer to: https://blog.powerdns.com/2018/11/26/powerdns-recursor-4-1-8-released/