{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-30194", "assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981", "state": "PUBLISHED", "assignerShortName": "OX", "dateReserved": "2025-03-18T08:39:46.884Z", "datePublished": "2025-04-29T11:25:47.141Z", "dateUpdated": "2025-06-20T15:42:56.102Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.powerdns.com/", "defaultStatus": "unaffected", "modules": ["DNS over HTTPS"], "packageName": "dnsdist", "product": "DNSdist", "programFiles": ["dnsdist-doh-common.hh"], "repo": "https://github.com/PowerDNS/pdns", "vendor": "PowerDNS", "versions": [{"lessThan": "1.9.9", "status": "affected", "version": "1.9.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Charles Howes"}], "datePublic": "2025-04-29T10:17:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>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.</p><p>The remedy is: upgrade to the patched 1.9.9 version.</p><p>A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version.</p><p>We would like to thank Charles Howes for bringing this issue to our attention.</p>"}], "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."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-416", "description": "CWE-416 User After Free", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981", "shortName": "OX", "dateUpdated": "2025-04-29T11:27:04.926Z"}, "references": [{"url": "https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-02.html"}], "source": {"advisory": "PowerDNS Security Advisory 2025-02", "discovery": "EXTERNAL"}, "title": "Denial of service via crafted DoH exchange", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-06-20T15:42:56.102Z"}, "references": [{"url": "http://www.openwall.com/lists/oss-security/2025/04/29/1"}, {"url": "https://www.vicarius.io/vsociety/posts/cve-2025-30194-detection-dnsdist-vulnerability"}, {"url": "https://www.vicarius.io/vsociety/posts/cve-2025-30194-mitigate-dnsdist-vulnerability"}], "title": "CVE Program Container", "x_generator": {"engine": "ADPogram 0.0.1"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-29T13:24:59.318458Z", "id": "CVE-2025-30194", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-29T13:25:09.226Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2025/04/29/1"}, {"url": "https://www.vicarius.io/vsociety/posts/cve-2025-30194-detection-dnsdist-vulnerability"}, {"url": "https://www.vicarius.io/vsociety/posts/cve-2025-30194-mitigate-dnsdist-vulnerability"}], "x_generator": {"engine": "ADPogram 0.0.1"}, "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-06-20T15:42:56.102Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-30194", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-29T13:24:59.318458Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-29T13:25:05.611Z"}}], "cna": {"title": "Denial of service via crafted DoH exchange", "source": {"advisory": "PowerDNS Security Advisory 2025-02", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Charles Howes"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"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"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/PowerDNS/pdns", "vendor": "PowerDNS", "modules": ["DNS over HTTPS"], "product": "DNSdist", "versions": [{"status": "affected", "version": "1.9.0", "lessThan": "1.9.9", "versionType": "semver"}], "packageName": "dnsdist", "programFiles": ["dnsdist-doh-common.hh"], "collectionURL": "https://repo.powerdns.com/", "defaultStatus": "unaffected"}], "datePublic": "2025-04-29T10:17:00.000Z", "references": [{"url": "https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-02.html"}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "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.", "supportingMedia": [{"type": "text/html", "value": "<p>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.</p><p>The remedy is: upgrade to the patched 1.9.9 version.</p><p>A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version.</p><p>We would like to thank Charles Howes for bringing this issue to our attention.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 User After Free"}]}], "providerMetadata": {"orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981", "shortName": "OX", "dateUpdated": "2025-04-29T11:27:04.926Z"}}}, "cveMetadata": {"cveId": "CVE-2025-30194", "state": "PUBLISHED", "dateUpdated": "2025-06-20T15:42:56.102Z", "dateReserved": "2025-03-18T08:39:46.884Z", "assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981", "datePublished": "2025-04-29T11:25:47.141Z", "assignerShortName": "OX"}, "dataVersion": "5.1"}

{"cveTags": [], "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."}], "id": "CVE-2025-30194", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security@open-xchange.com", "type": "Secondary"}]}, "published": "2025-04-29T12:15:31.983", "references": [{"source": "security@open-xchange.com", "url": "https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-02.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "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"}], "sourceIdentifier": "security@open-xchange.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "security@open-xchange.com", "type": "Secondary"}]}

{}

{"created": "2025-06-23T19:32:00.345552+00:00", "updated": "2025-06-23T19:32:00.345604+00:00", "vendors": ["powerdns", "powerdns$PRODUCT$dnsdist"]}