knot-resolver: Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentiall...
CVE-2023-26249 is fixed in knot-resolver on 1 platform, first by DEBIAN-CVE-2023-26249, released February 21, 2023. It is not reported as exploited. Patch Radar priority: High.
Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| knot-resolver · Debian 12.15 (bookworm) | 5.6.0-1 | DEBIAN-CVE-2023-26249 | Feb 21, 2023 |
| knot-resolver · Debian 13.5 (trixie) | 5.6.0-1 | DEBIAN-CVE-2023-26249 | Feb 21, 2023 |
| knot-resolver · Debian 14 | 5.6.0-1 | DEBIAN-CVE-2023-26249 | Feb 21, 2023 |
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