Name: CVE-2019-10190: Improper Input Validation
Creator: Rapid7
Published: 2019-07-16T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2019-10190, CWE-20, CVSS 7.5, EPSS 0.01993

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.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
CVSS 3.0 Base Score: 5.4
CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade knot-resolver	Aug 22, 2024	Jul 16, 2019
Debian	—	Upgrade knot-resolver	Apr 29, 2024	Jul 16, 2019
Ubuntu	—	Upgrade knot-resolver	Oct 2, 2024	Jul 16, 2019

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CVSS Details

Covered by Rapid7

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