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CVE-2019-10190

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CVE-2019-10190

Published: Jul 16, 2019

Modified: Feb 13, 2025

PUBLISHED

CVSS v3.0

5.4

MEDIUM

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.

VendorProductVersions

CZ.NIC

knot-resolver

affected
from 3.2.0 before 4.1.0

Weaknesses (CWE)

CWE-20

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

References

FEDORA-2019-fdb50c675d
vendor-advisory
x_refsource_FEDORA
FEDORA-2019-20f95b0b39
vendor-advisory
x_refsource_FEDORA

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