CVEvulnerability

CVE-2019-10190

7.5 HIGH Published 2019-07-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-07-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 3.0 ([email protected])
5.4 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-20

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 configurations

• nic knot resolver (<= 3.2.0) • nic knot resolver (>= 4.0.0 < 4.1.0) • fedoraproject fedora 29 • fedoraproject fedora 30

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References