CVE-2024-25581

· HIGHDeferred

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CVSS v3.1

7.5

EPSS

1.08%

Published

May 14, 2024

Modified

Apr 14, 2026

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-20

References (4)

http://www.openwall.com/lists/oss-security/2024/05/13/1

https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.html

http://www.openwall.com/lists/oss-security/2024/05/13/1

https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.html

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