Detections
Analytics

Oracle Linux 9 : 389-ds-base (ELSA-2026-26455)

high Nessus Plugin ID 322811

Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-26455 advisory.

 - Resolves: RHEL-178086 - CVE-2026-9064 389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS) [rhel-9.8]

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

Note that Nessus has not tested for this issue 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-2026-26455.html

Plugin Details

Severity: High

ID: 322811

File Name: oraclelinux_ELSA-2026-26455.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/25/2026

Updated: 6/25/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2026-9064

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:python3-lib389, p-cpe:/a:oracle:linux:389-ds-base-snmp, p-cpe:/a:oracle:linux:389-ds-base-libs, p-cpe:/a:oracle:linux:389-ds-base-devel, p-cpe:/a:oracle:linux:389-ds-base

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: 6/23/2026

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-9064