Debian dsa-6045 : pdns-recursor - security update

critical Nessus Plugin ID 271978

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Synopsis

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

Description

The remote Debian 13 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-6045 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6045-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff October 29, 2025 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : pdns-recursor CVE ID : CVE-2025-59023 CVE-2025-59024

Two vulnerabiliites have been discovered in PDNS Recursor, a resolving name server: Delegation information was insufficiently validated, which could result in cache pollution.

These changes are too intrusive to be backported to the version of the PDNS recursor in the oldstable distribution (bookworm). For affected setups an update to Debian stable/trixie is recommended, no further security updates for pdns-recursor in Bookworm will be issued.

For the stable distribution (trixie), these problems have been fixed in version 5.2.6-0+deb13u1.

We recommend that you upgrade your pdns-recursor packages.

For the detailed security status of pdns-recursor please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/pdns-recursor

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: [email protected]

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

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

Solution

Upgrade the pdns-recursor packages.

Plugin Details

Severity: Critical

ID: 271978

File Name: debian_DSA-6045.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/29/2025

Updated: 10/29/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2025-59024

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:pdns-recursor, cpe:/o:debian:debian_linux:13.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/29/2025

Vulnerability Publication Date: 10/29/2025

Reference Information

CVE: CVE-2025-59023, CVE-2025-59024

Detections

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