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. The remedy is: upgrade to the patched 1.9.9 version. A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version. We would like to thank Charles Howes for bringing this issue to our attention.
History

Tue, 29 Apr 2025 14:30:00 +0000

Type Values Removed Values Added
References

Tue, 29 Apr 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 29 Apr 2025 11:45:00 +0000

Type Values Removed Values Added
Description 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. The remedy is: upgrade to the patched 1.9.9 version. A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version. We would like to thank Charles Howes for bringing this issue to our attention.
Title Denial of service via crafted DoH exchange
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: OX

Published: 2025-04-29T11:25:47.141Z

Updated: 2025-04-29T13:25:09.226Z

Reserved: 2025-03-18T08:39:46.884Z

Link: CVE-2025-30194

cve-icon Vulnrichment

Updated: 2025-04-29T13:12:34.483Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-04-29T12:15:31.983

Modified: 2025-04-29T14:15:32.390

Link: CVE-2025-30194

cve-icon Redhat

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