Detections
Analytics

openSUSE 16 Security Update : nsd (openSUSE-SU-2026:21502-1)

high Nessus Plugin ID 331552

Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21502-1 advisory.

 Changes in nsd:

 - Update nsd.keyring

 - update to 4.14.3:
 https://github.com/NLnetLabs/nsd/blob/NSD_4_14_3_REL/doc/ChangeLog
 * CVE-2026-12490: Bypass of client certificate verification with transfer over TLS (bsc#1269563)
 * CVE-2026-12246: Out of bounds stack write with crafted APL RR (bsc#1269564)
 * CVE-2026-12245: Denial of DNS over TLS service by any DoT client (bsc#1269565)
 * CVE-2026-12244: Heap overflow and crash with crafted SVCB RR (bsc#1269566)
 - update to 4.14.2:
 https://github.com/NLnetLabs/nsd/blob/NSD_4_14_2_REL/doc/ChangeLog
 - update to 4.14.1:
 https://github.com/NLnetLabs/nsd/blob/NSD_4_14_1_REL/doc/ChangeLog
 - update to 4.14.0:
 https://github.com/NLnetLabs/nsd/blob/NSD_4_14_0_REL/doc/ChangeLog

 - update to 4.13.0:
 https://github.com/NLnetLabs/nsd/blob/NSD_4_13_0_REL/doc/ChangeLog https://github.com/NLnetLabs/nsd/blob/NSD_4_12_1_REL/doc/ChangeLog https://github.com/NLnetLabs/nsd/blob/NSD_4_12_0_REL/doc/ChangeLog https://github.com/NLnetLabs/nsd/blob/NSD_4_11_1_REL/doc/ChangeLog https://github.com/NLnetLabs/nsd/blob/NSD_4_11_0_REL/doc/ChangeLog https://github.com/NLnetLabs/nsd/blob/NSD_4_10_1_REL/doc/ChangeLog https://github.com/NLnetLabs/nsd/blob/NSD_4_10_0_REL/doc/ChangeLog https://github.com/NLnetLabs/nsd/blob/NSD_4_9_1_REL/doc/ChangeLog https://github.com/NLnetLabs/nsd/blob/NSD_4_9_0_REL/doc/ChangeLog
 - enable systemd notify support.
 - enable dnstap support.
 - enable tcp fast open support
 - enable support for >= 2038

Tenable has extracted the preceding description block directly from the SUSE 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

Update the affected nsd package.

See Also

https://bugzilla.suse.com/1269563

https://bugzilla.suse.com/1269564

https://bugzilla.suse.com/1269565

https://bugzilla.suse.com/1269566

https://www.suse.com/security/cve/CVE-2026-12244

https://www.suse.com/security/cve/CVE-2026-12245

https://www.suse.com/security/cve/CVE-2026-12246

https://www.suse.com/security/cve/CVE-2026-12490

Plugin Details

Severity: High

ID: 331552

File Name: openSUSE-2026-21502-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/1/2026

Updated: 8/1/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.4

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-12244

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-12245

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:nsd

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/29/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-12244, CVE-2026-12245, CVE-2026-12246, CVE-2026-12490