CVE-2024-8418 Containers/aardvark-dns: tcp query handling flaw in aardvark-dns leading to denial of service

2024-09-0414:24:03

CWE-400

redhat

github.com

aardvark-dns

tcp query

denial of service

vulnerability

containers

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

21.0%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

A flaw was found in Aardvark-dns, which is vulnerable to a Denial of Service attack due to the serial processing of TCP DNS queries. An attacker can exploit this flaw by keeping a TCP connection open indefinitely, causing the server to become unresponsive and resulting in other DNS queries timing out. This issue prevents legitimate users from accessing DNS services, thereby disrupting normal operations and causing service downtime.