CVE-2025-30194
CVE-2025-30194 · Denial of service via crafted DoH exchange
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When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access (double-free) and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version. We would like to thank Charles Howes for bringing this issue to our attention.
CVSS 7.5 · Hoch · EPSS 2,2% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: system
Betroffene Produkte und Versionen
Originalquellen
- https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-02.html
- http://www.openwall.com/lists/oss-security/2025/04/29/1
- https://www.vicarius.io/vsociety/posts/cve-2025-30194-detection-dnsdist-vulnerability
- https://www.vicarius.io/vsociety/posts/cve-2025-30194-mitigate-dnsdist-vulnerability
- https://nvd.nist.gov/vuln/detail/CVE-2025-30194