An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly closed, but in some cases the system might enter an out-of-memory state instead and terminate the process.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade dnsdist | Apr 24, 2026 | Mar 31, 2026 |
| Debian | — | Upgrade dnsdist | Jul 23, 2026 | Jul 23, 2026 |
| Freebsd | — | Upgrade dnsdist | Apr 14, 2026 | Apr 10, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub