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Debian dla-3139 : knot-resolver - 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.

 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-3139-1 [email protected] https://www.debian.org/lts/security/ Chris Lamb October 07, 2022 https://wiki.debian.org/LTS
 - -------------------------------------------------------------------------

 Package : knot-resolver Version : 3.2.1-3+deb10u1 CVE ID : CVE-2022-40188

 It was discovered that there was a potential remote denial-of-service vulnerability in the knot-resolver DNSSEC-validating DNS resolver.

 Remote attackers could have caused a denial of service via CPU consumption by exploiting algorithmic complexity: during an attack, an authoritative server would return large nameserver or address sets.

 For Debian 10 buster, this problem has been fixed in version 3.2.1-3+deb10u1.

 We recommend that you upgrade your knot-resolver packages.

 For the detailed security status of knot-resolver please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/knot-resolver

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

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.

See Also

http://www.nessus.org/u?8a867234

https://security-tracker.debian.org/tracker/CVE-2022-40188

https://packages.debian.org/source/buster/knot-resolver

Plugin Details

Severity: High

ID: 165789

File Name: debian_DLA-3139.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/8/2022

Updated: 1/22/2025

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