BSIDES BELGRADE 2026
AGENDA 2026

About the Workshop/Talk

DNS is one of those pieces of internet infrastructure that “just works” - until it doesn’t. When it fails, everything above it fails too. In this talk, I’ll walk through the discovery of a previously unknown remote denial-of-service vulnerability in ISC BIND, the most widely deployed open-source DNS server on the internet. The bug could be triggered by a carefully constructed DNS query, allowing an unauthenticated attacker to reliably crash or stall a DNS server from anywhere on the network. Remember, it's always DNS!