CVE-2024-8418

Public Exploit
Containers/aardvark-dns: tcp query handling flaw in aardvark-dns leading to denial of service

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.

Remediation

Workaround:

  • It is advised to upgrade aardvark-dns to version 1.12.1 or higher.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.58%
Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 10
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat OpenShift Container Platform 4
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2025:7094 vendor advisory
https://access.redhat.com/security/cve/CVE-2024-8418 vdb entry third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2309683 issue tracking
https://github.com/containers/aardvark-dns/issues/500 issue tracking exploit
https://github.com/containers/aardvark-dns/pull/503 issue tracking

Frequently Asked Questions

What is the severity of CVE-2024-8418?
CVE-2024-8418 has been scored as a high severity vulnerability.
How to fix CVE-2024-8418?
As a workaround for remediating CVE-2024-8418: It is advised to upgrade aardvark-dns to version 1.12.1 or higher.
Is CVE-2024-8418 being actively exploited in the wild?
It is possible that CVE-2024-8418 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-8418?
CVE-2024-8418 affects Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 10, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat OpenShift Container Platform 4.
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