CVE & CISA-KEV Catalog

CVE-2024-8418

HIGH
7.5
CVSS v3
NVD

Description

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.

How to fix

Remediation Available
aardvark-dnsDebian
Fixed in:1.12.2-1CVE-2024-8418
Fixed in:1.12.2-1CVE-2024-8418
aardvark-dnsRocky
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
aardvark-dnsRed Hat / RHEL
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
aardvark-dns-debuginfoRocky
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
aardvark-dns-debuginfoRed Hat / RHEL
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
aardvark-dns-debugsourceRocky
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
aardvark-dns-debugsourceRed Hat / RHEL
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094
Fixed in:2:1.14.0-1.el9RHSA-2025:7094

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.76%probability of exploitation in 30 days
51stpercentile

Moderate risk: more likely to be exploited than 51% of all known CVEs.

References

Exploit1
Third-Party Advisory1
Other references1

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-44487High7.5100%KEVFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2011-3192High7.899%-Fix
CVE-2019-11478Medium5.395%-Fix
CVE-2024-25617Medium5.389%-Fix
CVE-2018-1000115High7.589%-Fix
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CVE-2024-8418 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-30.