Debian DLA-3139-1 : knot-resolver - LTS security update

high Nessus Plugin ID 165789

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3139 advisory.

- Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets. (CVE-2022-40188)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the knot-resolver packages.

For Debian 10 Buster, these problems have been fixed in version 3.2.1-3+deb10u1.

Plugin Details

Severity: High

ID: 165789

File Name: debian_DLA-3139.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/8/2022

Updated: 11/29/2022

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2022-40188

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:knot-resolver-module-http, p-cpe:/a:debian:debian_linux:knot-resolver-doc, p-cpe:/a:debian:debian_linux:knot-resolver

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/7/2022

Vulnerability Publication Date: 9/23/2022

Reference Information

CVE: CVE-2022-40188

Detections

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