Description
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.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| dnsdist | 2.0.0 | 2.0.3 |
References
Similar Threats
- High CVE-2026-33593
- Low CVE-2026-33597
- Medium CVE-2026-33598
- Medium CVE-2026-33602
- Medium CVE-2026-33254
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