VDB
DEBIAN-CVE-2019-19331
DEBIAN-CVE-2019-19331
PUBLISHED
CVSS 7.5 HIGH
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).
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | knot-resolver | 0, 0, 0 |
| Debian:12 | knot-resolver | 0, 0, 0 |
| Debian:11 | knot-resolver | 0, 0, 0 |
| Debian:13 | knot-resolver | 0, 0, 0 |
Timeline
- Dec 16, 2019 CVE Published
- Apr 28, 2026 CVE Updated