{"id":"CVE-2024-25581","aliases":["ALPINE-CVE-2024-25581","DEBIAN-CVE-2024-25581","EUVD-2024-22909","GHSA-55g9-rgmx-hvww","openSUSE-SU-2024:13958-1"],"status":"published","title":"Transfer requests received over DoH can lead to a denial of service in DNSdist","description":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01078,"percentile":0.65511,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2024-05-13T11:49:24Z","modified":"2026-11-03T06:32:49Z","fixes":[{"ecosystem":"Alpine:v3.20","package":"dnsdist","fixed_in":["1.9.4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"dnsdist","fixed_in":["1.9.4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"dnsdist","fixed_in":["1.9.4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"dnsdist","fixed_in":["1.9.4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"dnsdist","fixed_in":["1.9.4-r0"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"dnsdist","fixed_in":["1.9.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"dnsdist","fixed_in":["1.9.4-1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"dnsdist","fixed_in":["1.9.4-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.20","package":"dnsdist","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"dnsdist","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"dnsdist","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"dnsdist","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"dnsdist","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-r0"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"dnsdist","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"dnsdist","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-1"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"dnsdist","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-1.1"}]}]}],"products":[{"vendor":"powerdns","product":"dnsdist"}],"references":[{"url":"https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.html","tags":["x_transferred","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2024/05/13/1","tags":["x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-25581","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-55g9-rgmx-hvww"},{"url":"https://security.alpinelinux.org/vuln/CVE-2024-25581","tags":["advisory"]},{"url":"https://repo.powerdns.com/","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/25xxx/CVE-2024-25581.json","tags":["advisory"]},{"url":"https://github.com/PowerDNS/pdns","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-25581","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2024-25581","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2024-25581","title":"Transfer requests received over DoH can lead to a denial of service in DNSdist","description":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.","status":"published","published":"2024-05-13T11:49:24.5Z","modified":"2025-02-13T17:40:49.395Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:34:04.341725Z"}],"euvd":[{"id":"EUVD-2024-22909","description":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.","status":"published","published":"2024-05-13T11:49:24Z","modified":"2025-02-13T17:40:49Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:03:46.532099Z"}],"ghsa":[{"id":"GHSA-55g9-rgmx-hvww","title":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are...","description":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.","status":"published","published":"2024-05-14T15:32:52Z","modified":"2025-02-13T18:33:33Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:59:56.485496Z"}],"nvd":[{"id":"CVE-2024-25581","description":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.","status":"published","published":"2024-05-14T15:05:29.707Z","modified":"2026-06-17T07:16:12.97Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:09:57.497105Z"}],"osv":[{"id":"ALPINE-CVE-2024-25581","description":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.","status":"published","published":"2024-05-14T15:05:29.707Z","modified":"2026-11-03T06:32:49.495455851Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T07:16:46.202932Z"},{"id":"CVE-2024-25581","title":"Transfer requests received over DoH can lead to a denial of service in DNSdist","description":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.","status":"published","published":"2024-05-13T11:49:24.5Z","modified":"2026-10-28T02:30:58.630399613Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:44:38.897406Z"},{"id":"DEBIAN-CVE-2024-25581","description":"When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.","status":"published","published":"2024-05-14T15:05:29.707Z","modified":"2026-11-02T12:01:00.382961767Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:41.849198Z"},{"id":"openSUSE-SU-2024:13958-1","title":"dnsdist-1.9.4-1.1 on GA media","description":"These are all security issues fixed in the dnsdist-1.9.4-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:28:51.672427Z","updated_at":"2026-11-02T16:58:36.662953Z"}]}}