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RockyLinux 10 : 389-ds-base (RLSA-2026:26456)

high Nessus Plugin ID 321757

Synopsis

The remote RockyLinux host is missing a security update.

Description

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:26456 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):

 * DS 12 does not handle escape char in bind user [rhel-10.2.z] (JIRA:Rocky Linux-170271)

 * dnaSharedConfig: dnaPortNum: 0 [rhel-10.2.z] (JIRA:Rocky Linux-170276)

 * Memory leaks in syncrepl plugin during persistent search operations [rhel-10.2.z] (JIRA:Rocky Linux-170281)

 * access log - suspicious wtime optime negative and large values in internal op [rhel-10.2.z] (JIRA:Rocky Linux-170363)

 * An online reinitialization with LMDB is terminating the receiving server [rhel-10.2.z] (JIRA:Rocky Linux-170478)

 * dsctl healthcheck DSMOLE0001 inaccurate recommendations when there is more than 1 LDAP backend [rhel-10.2.z] (JIRA:Rocky Linux-170481)

 * Possible memory leak when using the Retro Changelog plugin. [rhel-10.2.z] (JIRA:Rocky Linux-170515)

 * [RFE] Add OS-level thread names to all server threads [rhel-10.2.z] (JIRA:Rocky Linux-174526)

 * Online export is failing when using the option -s [rhel-10.2.z] (JIRA:Rocky Linux-180718)

 * Server shutdown during online reindex may lead to data loss [rhel-10.2.z] (JIRA:Rocky Linux-183897)

 * Error: NssSsl.add_cert() got an unexpected keyword argument 'input_file' [rhel-10.2.z] (JIRA:Rocky Linux-183898)

 * Replication errors in logs [rhel-10.2.z] (JIRA:Rocky Linux-183899)

 * Substring index produces empty results and can crash when non-default nsSubStrBegin/nsSubStrEnd lengths are configured [rhel-10.2.z] (JIRA:Rocky Linux-183900)

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.

See Also

https://errata.rockylinux.org/RLSA-2026:26456

https://bugzilla.redhat.com/show_bug.cgi?id=2480093

Plugin Details

Severity: High

ID: 321757

File Name: rocky_linux_RLSA-2026-26456.nasl

Version: 1.1

Type: Local

Published: 6/20/2026

Updated: 6/20/2026

Supported Sensors: Continuous Assessment, Nessus Agent, 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-debugsource, p-cpe:/a:rocky:linux:python3-lib389, p-cpe:/a:rocky:linux:389-ds-base-debuginfo, p-cpe:/a:rocky:linux:389-ds-base-snmp, p-cpe:/a:rocky:linux:389-ds-base-bdb, cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:389-ds-base, p-cpe:/a:rocky:linux:389-ds-base-devel, p-cpe:/a:rocky:linux:389-ds-base-snmp-debuginfo, p-cpe:/a:rocky:linux:389-ds-base-libs, p-cpe:/a:rocky:linux:389-ds-base-bdb-debuginfo, p-cpe:/a:rocky:linux:389-ds-base-libs-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/19/2026

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-9064