vulnerability
FreeBSD: VID-c2253bff-9952-11f0-b6e2-6805ca2fa271 (CVE-2025-30187): dnsdist -- Denial of service via crafted DoH exchange
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Sep 24, 2025 | Dec 10, 2025 | Dec 10, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Sep 24, 2025
Added
Dec 10, 2025
Modified
Dec 10, 2025
Description
[email protected] reports: 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. The offending code was introduced in DNSdist 1.9.0-alpha1 so previous versions are not affected.
Solution
freebsd-upgrade-package-dnsdist
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