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Fencer Vulns
high 7.5

CVE-2024-8418 json

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

published 2024-09-04 2 y ago modified 2026-11-05 3 d ago also GHSA-g5jh-57wm-p79m , EUVD-2024-2791

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

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 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.

Patch / fix

  • crates.io aardvark-dns 1.12.2
  • Red Hat Red Hat Enterprise Linux 9 2:1.14.0-1.el9
  • aardvark-dns Debian 14, Debian 13 1.12.2-1

debian advisories DEBIAN-CVE-2024-8418

  • aardvark-dns RHEL 9 2:1.14.0-1.el9

red hat advisories RHSA-2025:7094

  • aardvark-dns openSUSE Tumbleweed 1.12.2-1.1

opensuse advisories openSUSE-SU-2024:14319-1

  • aardvark-dns AlmaLinux 9 2:1.14.0-1.el9

almalinux advisories ALSA-2025:7094

  • aardvark-dns Rocky Linux 9 2:1.14.0-1.el9

rocky linux advisories RLSA-2025:7094

  • aardvark-dns Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 1.12.2-r0

alpine advisories ALPINE-CVE-2024-8418

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-8418 updated cvss 7.5

containers/aardvark-dns: TCP Query Handling Flaw in Aardvark-dns Leading to Denial of Service

  • Red Hat Enterprise Linux AppStream (v. 9) aardvark-dns 1.14.0-1.el9
    fixed: vendor fix “It is advised to upgrade aardvark-dns to version 1.12.1 or higher.” RHSA-2025:7094
  • Red Hat Enterprise Linux 8 netavark, aardvark-dns, containers-common Red Hat Enterprise Linux 9 netavark, aardvark-dns, containers-common, containers-common-extra Red Hat Enterprise Linux 10 aardvark-dns Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/containers/aardvark-dns/issues/500 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
crates.io aardvark-dns
>=1.12.0, <1.12.2
1.12.2

Affected products

  • 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 OpenShift Container Platform 4

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.