| Name | CVE-2022-40188 |
| Description | Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-3139-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| knot-resolver (PTS) | buster | 3.2.1-3 | vulnerable |
| buster (security) | 3.2.1-3+deb10u1 | fixed | |
| bullseye | 5.3.1-1+deb11u1 | vulnerable | |
| bookworm, sid | 5.6.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| knot-resolver | source | buster | 3.2.1-3+deb10u1 | DLA-3139-1 | ||
| knot-resolver | source | (unstable) | 5.5.3-1 |
[bullseye] - knot-resolver <no-dsa> (Minor issue)
https://github.com/CZ-NIC/knot-resolver/commit/f6577a20e493c7fbdac124d7544bf1846b084185 (v5.5.3)
https://www.knot-resolver.cz/2022-09-21-knot-resolver-5.5.3.html