Debian dsa-6235 : dnsdist - security update

critical Nessus Plugin ID 310797

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-6235 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6235-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 28, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : dnsdist CVE ID : CVE-2026-0396 CVE-2026-0397 CVE-2026-24028 CVE-2026-24029 CVE-2026-24030 CVE-2026-27853 CVE-2026-27854 CVE-2026-33254 CVE-2026-33257 CVE-2026-33260 CVE-2026-33593 CVE-2026-33594 CVE-2026-33595 CVE-2026-33596 CVE-2026-33597 CVE-2026-33598 CVE-2026-33599 CVE-2026-33602

Multiple security vulnerabilities were discovered in the dnsdist DNS loadbalancer, which could result in denial of service, information disclosure or ACL bypass.

For the stable distribution (trixie), these problems have been fixed in version 1.9.14-0+deb13u1.

We recommend that you upgrade your dnsdist packages.

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

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 dnsdist packages.

Plugin Details

Severity: Critical

ID: 310797

File Name: debian_DSA-6235.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 4/29/2026

Updated: 4/29/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-33598

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:N/A:H

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:dnsdist, 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: 4/28/2026

Vulnerability Publication Date: 3/31/2026

Reference Information

CVE: CVE-2026-0396, CVE-2026-0397, CVE-2026-24028, CVE-2026-24029, CVE-2026-24030, CVE-2026-27853, CVE-2026-27854, CVE-2026-33254, CVE-2026-33257, CVE-2026-33260, CVE-2026-33593, CVE-2026-33594, CVE-2026-33595, CVE-2026-33596, CVE-2026-33597, CVE-2026-33598, CVE-2026-33599, CVE-2026-33602

Detections

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