CVE-2025-30194

{"id": "CVE-2025-30194", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2025-04-29T12:15:31.983", "references": [{"url": "https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-02.html", "source": "[email protected]"}, {"url": "http://www.openwall.com/lists/oss-security/2025/04/29/1", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.vicarius.io/vsociety/posts/cve-2025-30194-detection-dnsdist-vulnerability", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.vicarius.io/vsociety/posts/cve-2025-30194-mitigate-dnsdist-vulnerability", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "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.\n\nThe remedy is: upgrade to the patched 1.9.9 version.\n\nA workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version.\n\nWe would like to thank Charles Howes for bringing this issue to our attention."}, {"lang": "es", "value": "Cuando DNSdist est\u00e1 configurado para proporcionar DoH a trav\u00e9s del proveedor nghttp2, un atacante puede provocar una denegaci\u00f3n de servicio creando un intercambio de DoH que desencadena un acceso ilegal a memoria (doble liberaci\u00f3n) y el bloqueo de DNSdist, lo que provoca una denegaci\u00f3n de servicio. La soluci\u00f3n es actualizar a la versi\u00f3n 1.9.9 parcheada. Una alternativa es cambiar temporalmente al proveedor h2o hasta que DNSdist se actualice a una versi\u00f3n corregida. Agradecemos a Charles Howes por informarnos sobre este problema."}], "lastModified": "2025-06-20T16:15:28.553", "sourceIdentifier": "[email protected]"}