Detections
Analytics

Oracle Linux 8 : kernel (ELSA-2026-23258)

high Nessus Plugin ID 319292

Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-23258 advisory.

 - smb: client: reject userspace cifs.spnego descriptions (Paulo Alcantara) [RHEL-178938] {CVE-2026-46243}
 - smb: client: fix OOB reads parsing symlink error response (Paulo Alcantara) [RHEL-171465] {CVE-2026-31613}
 - geneve: Fix use-after-free in geneve_find_dev(). (Antoine Tenart) [RHEL-168961] {CVE-2025-21858}
 - netfilter: nf_tables: release flowtable after rcu grace period on error (Florian Westphal) [RHEL-160514] {CVE-2026-23392}
 - smc: Fix use-after-free in tcp_write_timer_handler(). (Steve Best) [RHEL-167084] {CVE-2023-53781}
 - nbd: defer config unlock in nbd_genl_connect (CKI Backport Bot) [RHEL-166939] {CVE-2025-68366}
 - libceph: prevent potential out-of-bounds reads in handle_auth_done() (CKI Backport Bot) [RHEL-143892] {CVE-2026-22984}

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-2026-23258.html

Plugin Details

Severity: High

ID: 319292

File Name: oraclelinux_ELSA-2026-23258.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/5/2026

Updated: 6/5/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-46243

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-tools-libs-devel, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-cross-headers, p-cpe:/a:oracle:linux:kernel-debug-modules, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:kernel-tools, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel-modules, p-cpe:/a:oracle:linux:kernel-abi-stablelists, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-core, p-cpe:/a:oracle:linux:kernel-debug-modules-extra, p-cpe:/a:oracle:linux:python3-perf, p-cpe:/a:oracle:linux:bpftool, p-cpe:/a:oracle:linux:kernel-debug-core, cpe:/o:oracle:linux:8:10:baseos_patch, p-cpe:/a:oracle:linux:perf, p-cpe:/a:oracle:linux:kernel-modules-extra, p-cpe:/a:oracle:linux:kernel-tools-libs, p-cpe:/a:oracle:linux:kernel

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/5/2026

Vulnerability Publication Date: 6/1/2026

Reference Information

CVE: CVE-2026-46243