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THREATINT
PUBLISHED

CVE-2024-25581

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.

Reserved 2024-02-08 | Published 2024-05-13 | Updated 2024-08-01 | Assigner OX


HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-20 Improper Input Validation

Product status

Default status
unaffected

1.9.0
affected

1.9.1
affected

1.9.2
affected

1.9.3
affected

Credits

Daniel Stirnimann from Switch finder

References

dnsdist.org/...es/powerdns-advisory-for-dnsdist-2024-03.html

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

cve.org (CVE-2024-25581)

nvd.nist.gov (CVE-2024-25581)

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