In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a denial of service by crafting a DoH exchange that triggers an unbounded I/O read loop, causing an unexpected consumption of CPU resources.
Metrics
Affected Vendors & Products
References
History
Thu, 18 Sep 2025 14:15:00 +0000
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Metrics |
ssvc
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Thu, 18 Sep 2025 12:45:00 +0000
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First Time appeared |
Powerdns
Powerdns dnsdist |
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Vendors & Products |
Powerdns
Powerdns dnsdist |
Thu, 18 Sep 2025 09:30:00 +0000
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Description | In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a denial of service by crafting a DoH exchange that triggers an unbounded I/O read loop, causing an unexpected consumption of CPU resources. | |
Title | Denial of service via crafted DoH exchange in PowerDNS DNSdist | |
Weaknesses | CWE-835 | |
References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: OX
Published: 2025-09-18T09:21:32.274Z
Updated: 2025-09-18T14:03:26.359Z
Reserved: 2025-03-18T08:39:46.884Z
Link: CVE-2025-30187

Updated: 2025-09-18T13:38:55.274Z

Status : Awaiting Analysis
Published: 2025-09-18T10:15:32.993
Modified: 2025-09-18T13:43:34.310
Link: CVE-2025-30187

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