Due to a bug in the library's configuration file parser, commented out configuration settings in /etc/resolv.conf were picked up by the LDNS resolver, potentially leading to malfunction and/or information leakage.
This included, but was not limited to, the nameserver setting. Given this example
# /etc/resolv.conf
# nameserver 8.8.8.8
nameserver 127.0.0.1
DNS requests were sent to the commented out external resolver instead of the local one.
