CVE-2020-6078

An exploitable denial-of-service vulnerability exists in the
message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing
mDNS messages in mdns_recv, the return value of the mdns_read_header
function is not checked, leading to an uninitialized variable usage that
eventually results in a null pointer dereference, leading to service crash.
An attacker can send a series of mDNS messages to trigger this
vulnerability.