FreeBSD : PowerDNS Authoritative Server -- Denial of Service vulnerability (eb135656-db92-11f1-83b3-3c7c3fba4204)

high Nessus Plugin ID 377703

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the eb135656-db92-11f1-83b3-3c7c3fba4204 advisory.

PowerDNS Team reports:
CVE ID: CVE-2026-73206A malicious server can send a crafted reply that leads to high resource utilization decompression name pointers in DNS packets.This is a multi-vendor issue. Multiple DNS vendors are releasing fixed version of their products.The remedy is: upgrade to a patched version. The patched version imposes limits on the number of decompression done for a single name and for a DNS packet as a whole.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 377703

File Name: freebsd_pkg_eb135656db9211f183b33c7c3fba4204.nasl

Version: 1.1

Type: Local

Family: FreeBSD Local Security Checks

Published: 11/9/2026

Updated: 11/9/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2026-73206

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:powerdns

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 11/8/2026

Vulnerability Publication Date: 11/8/2026

Reference Information

CVE: CVE-2026-73206

Detections

Analytics