CVE-2019-10190 A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAI...
HighCVSS 7.5
EPSS 2.0%
- Published
- Updated
- Exploit status
- No public exploit known
Description
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/knot-resolver(Debian:12) | < 5.0.1-1 | 5.0.1-1 |
| debian/knot-resolver(Debian:13) | < 5.0.1-1 | 5.0.1-1 |
| debian/knot-resolver(Debian:14) | < 5.0.1-1 | 5.0.1-1 |
| nic Knot Resolver | <= 3.2.0 | No fix listed |
| nic Knot Resolver | >= 4.0.0, < 4.1.0 | 4.1.0 |
| fedoraproject fedora | = 29 | No fix listed |
| fedoraproject fedora | = 30 | No fix listed |
| alpine/knot-resolver(Alpine:v3.11) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.12) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.13) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.14) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.15) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.16) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.17) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.18) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.19) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.20) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.21) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.22) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.23) | < 4.1.0-r0 | 4.1.0-r0 |
| alpine/knot-resolver(Alpine:v3.24) | < 4.1.0-r0 | 4.1.0-r0 |
| CZ.NIC knot-resolver | = from 3.2.0 before 4.1.0 | No fix listed |
References
- Debian Security Tracker CVE-2019-10190 vendor-advisory
- bugzilla.redhat.com issue-tracking third-party-advisory
- lists.debian.org
- FEDORA-2019-20f95b0b39 vendor-advisory
- FEDORA-2019-fdb50c675d vendor-advisory
- www.knot-resolver.cz release-notes vendor-advisory
- security.alpinelinux.org vendor-advisory
- bugs.debian.org issue-tracking