---
id: CVE-2024-8418
title: >-
  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
summary: >-
  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 b…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: containers
product: aardvark-dns
affected:
  - aardvark-dns = 1.12.0
  - aardvark-dns = 1.12.1
published: '2024-09-04'
updated: '2026-06-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-8418'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2025:7094'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2024-8418'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2309683'
    label: secalert@redhat.com
  - url: 'https://github.com/containers/aardvark-dns/issues/500'
    label: secalert@redhat.com
  - url: 'https://github.com/containers/aardvark-dns/pull/503'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00765
epssPercentile: 0.53997
ingestedAt: '2026-06-29T13:24:33.965Z'
---

## Overview

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.

## Affected

- `aardvark-dns = 1.12.0`
- `aardvark-dns = 1.12.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.