vulnerability
FreeBSD: VID-7E7A32E7-2901-11F0-AB20-B42E991FC52E (CVE-2025-30194): dnsdist -- Denial of service via crafted DoH exchange
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Apr 29, 2025 | May 5, 2025 | May 13, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Apr 29, 2025
Added
May 5, 2025
Modified
May 13, 2025
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.
Solution
freebsd-upgrade-package-null
References
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