Denial of Service : Knot Resolver < 5.3.2 DoS Vulnerability

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Test ID: 1.3.6.1.4.1.25623.1.0.146580

Category: Denial of Service

Title: Knot Resolver < 5.3.2 DoS Vulnerability

Summary: Knot Resolver is prone to a denial of service vulnerability.

Description: Summary:
Knot Resolver is prone to a denial of service vulnerability.

Vulnerability Insight:
Knot Resolver is prone to an assertion failure, triggerable by
a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard
proof).

Affected Software/OS:
Knot Resolver prior to version 5.3.2.

Solution:
Update to version 5.3.2 or later.

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-40083
https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1169

Copyright Copyright (C) 2021 Greenbone Networks GmbH

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Test ID:	1.3.6.1.4.1.25623.1.0.146580
Category:	Denial of Service
Title:	Knot Resolver < 5.3.2 DoS Vulnerability
Summary:	Knot Resolver is prone to a denial of service vulnerability.
Description:	Summary: Knot Resolver is prone to a denial of service vulnerability. Vulnerability Insight: Knot Resolver is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof). Affected Software/OS: Knot Resolver prior to version 5.3.2. Solution: Update to version 5.3.2 or later. CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-40083 https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1169
Copyright	Copyright (C) 2021 Greenbone Networks GmbH