An exploitable denial-of-service vulnerability exists in the TXT record-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing the RDATA section in a TXT record in mDNS messages, multiple integer overflows can be triggered, leading to a denial of service. An attacker can send an mDNS message to trigger this vulnerability.
https://www.debian.org/security/2020/dsa-4671
https://talosintelligence.com/vulnerability_reports/TALOS-2020-0996