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.

Score

CVSS 3.1 7.5 High

Status

Modified - secalert@redhat.com

Published

2019-07-16

Last modified

2025-02-13

Weaknesses

CWE-20

Affected products

• Knot-resolver (Cz.nic)
• Fedora (Fedoraproject)
• Knot Resolver (Nic)

References

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10191
• https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMSSWBHINIX4WE6UDXWM66…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6…
• https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html