openSUSE 16 Security Update : perl-Net-DNS (openSUSE-SU-2026:21859-1)

critical Nessus Plugin ID 347913

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-2026:21859-1 advisory.

Changes in perl-Net-DNS:

Updated to 1.570.0 (1.57):

See /usr/share/doc/packages/perl-Net-DNS/Changes .

- Resync with IANA DNS parameters registry.
- EDNS: Add support for MQTYPE-QUERY option.
- Unbounded recursion when re-encoding message with misplaced TSIG CVE-2026-81928 bsc#1278084
- UNIX resolver can fail in taint mode

- Documentation issue for Net::DNS::RR::RRSIG::verify()
- Denial of Service via long DNS compression chains CVE-2026-64194 bsc#1272214
- Remote code injection via EDNS EXTENDED ERROR CVE-2026-64193 bsc#1272212
- UNIX.pm: Unreachable code warning using Apache/mod_perl

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 perl-Net-DNS package.

Plugin Details

Severity: Critical

ID: 347913

File Name: openSUSE-2026-21859-1.nasl

Version: 1.2

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 9/18/2026

Updated: 9/18/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.13

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-64193

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:perl-net-dns

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: 9/15/2026

Vulnerability Publication Date: 7/20/2026

Reference Information

CVE: CVE-2026-64193, CVE-2026-64194, CVE-2026-81928

IAVA: 2026-A-1012

Detections

Analytics