Detections
Analytics

Oracle Linux 9 : bind9.18 (ELSA-2026-75578)

high Nessus Plugin ID 364201

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-75578 advisory.

 - Prevent assertion failure in dns64 mode with break-dnssec yes (CVE-2026-19666)
 - Prevent memory leak on following HTTPS/SVCB RR (CVE-2026-81563)
 - Prevent crash on wildcard responses containing both NSEC and NSEC3 proofs (CVE-2026-80274)
 - Reject oversized negative cached records early (CVE-2026-19667)
 - Set limit to following HTTPS/SVCB aliases (CVE-2026-81736)

Tenable has extracted the preceding description block directly from the Oracle Linux 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 packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-75578.html

Plugin Details

Severity: High

ID: 364201

File Name: oraclelinux_ELSA-2026-75578.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/8/2026

Updated: 10/8/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.27

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-81736

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:oracle:linux:9, p-cpe:/a:oracle:linux:bind9.18-chroot, p-cpe:/a:oracle:linux:bind9.18-devel, p-cpe:/a:oracle:linux:bind9.18-dnssec-utils, p-cpe:/a:oracle:linux:bind9.18-doc, p-cpe:/a:oracle:linux:bind9.18-libs, p-cpe:/a:oracle:linux:bind9.18-utils, p-cpe:/a:oracle:linux:bind9.18

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Ease: No known exploits are available

Patch Publication Date: 10/5/2026

Vulnerability Publication Date: 9/16/2026

Reference Information

CVE: CVE-2026-19666, CVE-2026-19667, CVE-2026-80274, CVE-2026-81563, CVE-2026-81736