Improper input validation in Cz.nic Knot-Resolver
CVE-2019-10191
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.019 (79.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Cz.nic Knot-Resolver — versions all before 4.1.0
- Nic Knot Resolver
- Fedoraproject Fedora — versions 29, 30
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html (Release Notes, Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2024/04/msg00017.html
Frequently asked questions
- What is CVE-2019-10191?
- CVE-2019-10191 is a high-severity vulnerability in Cz.nic Knot-Resolver, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-07-16.
- How severe is CVE-2019-10191?
- High severity. CVSS v3 base score is 7.5 out of 10.