vulnerability
Debian: CVE-2019-19331: knot-resolver -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Dec 16, 2019 | Apr 29, 2024 | Aug 15, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Dec 16, 2019
Added
Apr 29, 2024
Modified
Aug 15, 2025
Description
knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB).
Solution
debian-upgrade-knot-resolver
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