A security update has been published for dnsdist, the DNS load balancer and DNS traffic router from the PowerDNS project.
dnsdist is often used in front of DNS resolvers and authoritative DNS servers to handle traffic, apply filtering rules, provide DNS-over-HTTPS / DNS-over-QUIC support, and protect backend DNS services.
Because dnsdist is usually exposed to DNS traffic from clients or the internet, security updates should be installed quickly.
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What is dnsdist?
dnsdist is a high-performance DNS load balancer and DNS proxy. It can sit in front of DNS servers and decide where DNS queries should go.
Common use cases include:
- DNS load balancing
- Protecting recursive resolvers
- Filtering abusive DNS traffic
- Rate limiting
- DNS-over-HTTPS (DoH)
- DNS-over-QUIC (DoQ)
- Routing queries to backend servers
- Adding security rules before DNS traffic reaches the backend
Affected CVEs
This update covers multip…login to view the rest of this post