Oracle Linux 10 : ELSA-2026-64785-0: / 389-ds-base (ELSA-2026-647850)

critical Nessus Plugin ID 343909

Synopsis

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

Description

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-647850 advisory.

- Resolves: RHEL-220500 - CVE-2026-18355 389-ds-base: heap buffer overflow via SASL wrapped-record length lower-bound underflow in sasl_io_start_packet() [rhel-10.2.z]
- Resolves: RHEL-222320 - CVE-2026-18453 389-ds-base: pre-authentication NULL pointer dereference via paged results and USE_ONE_BACKEND control in op_shared_search [rhel-10.2.z]
- Resolves: RHEL-232863 - CVE-2026-18922 389-ds-base: SASL PLAIN authentication allows privilege escalation to Directory Manager via stale identity in Cyrus SASL auxiliary property [rhel-10.2.z]
- Resolves: RHEL-245372 - CVE-2026-76560 389-ds-base: anonymous LDAP client can defeat SELFDN ACI bind-rule checks via empty bind DN [rhel-10.2.z]
- Resolves: RHEL-247859 - CVE-2026-78701 389-ds-base: CVE-2026-11610 incomplete fix may introduce a connection-stall DoS [rhel-10.2.z]

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.

Plugin Details

Severity: Critical

ID: 343909

File Name: oraclelinux_ELSA-2026-647850.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Oracle Linux Local Security Checks

Published: 9/8/2026

Updated: 9/8/2026

Supported Sensors: 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: 58.15

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-2026-18922

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:oracle:linux:10, p-cpe:/a:oracle:linux:389-ds-base-bdb, p-cpe:/a:oracle:linux:389-ds-base-devel, p-cpe:/a:oracle:linux:389-ds-base-libs, p-cpe:/a:oracle:linux:389-ds-base-snmp, p-cpe:/a:oracle:linux:389-ds-base, p-cpe:/a:oracle:linux:python3-lib389

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: 9/8/2026

Vulnerability Publication Date: 7/2/2026

Reference Information

CVE: CVE-2026-18355, CVE-2026-18453, CVE-2026-18922, CVE-2026-76560, CVE-2026-78701

Detections

Analytics