RockyLinux 9 : 389-ds-base (RLSA-2026:26455)

high Nessus Plugin ID 321498

Synopsis

The remote RockyLinux host is missing a security update.

Description

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:26455 advisory.

* 389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS) (CVE-2026-9064)

Bug Fix(es) and Enhancement(s):

* Getting build_candidate_list - Database error 11 messages after migrating to LMDB. [rhel-9.8.z] (JIRA:Rocky Linux-152356)

* Web console doesn't show the sub suffix of ou=foo,ou=people,dc=example,dc=com. [rhel-9.8.z] (JIRA:Rocky Linux-168967)

* DS 12 does not handle escape char in bind user [rhel-9.8.z] (JIRA:Rocky Linux-170269)

* [RFE] Add OS-level thread names to all server threads [rhel-9.8.z] (JIRA:Rocky Linux-174524)

* Online export is failing when using the option -s [rhel-9.8.z] (JIRA:Rocky Linux-180716)

* Server shutdown during online reindex may lead to data loss [rhel-9.8.z] (JIRA:Rocky Linux-183895)

Tenable has extracted the preceding description block directly from the RockyLinux 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.

Plugin Details

Severity: High

ID: 321498

File Name: rocky_linux_RLSA-2026-26455.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 6/18/2026

Updated: 6/18/2026

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: p-cpe:/a:rocky:linux:389-ds-base, p-cpe:/a:rocky:linux:389-ds-base-debuginfo, p-cpe:/a:rocky:linux:389-ds-base-debugsource, p-cpe:/a:rocky:linux:389-ds-base-devel, p-cpe:/a:rocky:linux:389-ds-base-libs, p-cpe:/a:rocky:linux:389-ds-base-libs-debuginfo, p-cpe:/a:rocky:linux:389-ds-base-snmp, p-cpe:/a:rocky:linux:389-ds-base-snmp-debuginfo, p-cpe:/a:rocky:linux:python3-lib389, cpe:/o:rocky:linux:9

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/17/2026

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-9064

Detections

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