| Name | CVE-2019-10191 |
| Description | A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 932048 |
Vulnerable and fixed packages
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 | vulnerable |
| bullseye | 5.3.1-1+deb11u1 | fixed |
| bookworm | 5.6.0-1 | fixed |
| sid, trixie | 5.7.0-1 | 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 | (unstable) | 5.0.1-1 | | | 932048 |
Notes
[buster] - knot-resolver <no-dsa> (Minor issue; can be fixed via point release)
https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html
https://gitlab.labs.nic.cz/knot/knot-resolver/merge_requests/839
https://www.openwall.com/lists/oss-security/2019/07/14/1