Detections
Analytics

Oracle Linux 9 : tigervnc (ELSA-2026-19342)

critical Nessus Plugin ID 322345

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-2026-19342 advisory.

 - Fix CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, CVE-2026-34003 xorg-x11-server: various XKB and XSYNC vulnerabilities Resolves: RHEL-163213 Resolves: RHEL-163281 Resolves: RHEL-163267
 - Fix CVE-2026-34352 Resolves: RHEL-167986
 - Fix CVE-2025-62229: xorg-x11-server: Use-after-free in XPresentNotify structures creation Resolves: RHEL-119989
 - Fix CVE-2025-62230: xorg-x11-server: Use-after-free in Xkb client resource removal Resolves: RHEL-120009

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-2026-19342.html

Plugin Details

Severity: Critical

ID: 322345

File Name: oraclelinux_ELSA-2026-19342.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/24/2026

Updated: 6/24/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2026-34352

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: p-cpe:/a:oracle:linux:tigervnc-server-minimal, p-cpe:/a:oracle:linux:tigervnc, p-cpe:/a:oracle:linux:tigervnc-icons, p-cpe:/a:oracle:linux:tigervnc-server, p-cpe:/a:oracle:linux:tigervnc-license, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:tigervnc-server-module, p-cpe:/a:oracle:linux:tigervnc-selinux

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/23/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34003, CVE-2026-34352