Detections
Analytics

Oracle Linux 8 : kernel (ELSA-2026-6037)

high Nessus Plugin ID 304490

Synopsis

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

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-6037 advisory.

 - net/sched: cls_u32: use skb_header_pointer_careful() (Paolo Abeni) [RHEL-150398] {CVE-2026-23204}
 - macvlan: fix error recovery in macvlan_common_newlink() (CKI Backport Bot) [RHEL-150221] {CVE-2026-23209}
 - net: atm: fix /proc/net/atm/lec handling (Hangbin Liu) [RHEL-146419] {CVE-2025-38180}
 - net: atm: add lec_mutex (Hangbin Liu) [RHEL-146419] {CVE-2025-38323}
 - smb: client: fix double free of TCP_Server_Info::hostname (Paulo Alcantara) [RHEL-138235] {CVE-2025-21673}
 - smb: client: guarantee refcounted children from parent session (Paulo Alcantara) [RHEL-138235] {CVE-2024-35869}
 - smb: client: set correct id, uid and cruid for multiuser automounts (Paulo Alcantara) [RHEL-138235] {CVE-2024-26822}
 - smb: client: fix missed ses refcounting (Paulo Alcantara) [RHEL-138235] {CVE-2023-54076}
 - cifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL (Paulo Alcantara) [RHEL-138235] {CVE-2023-53246}
 - cifs: fix use-after-free bug in refresh_cache_worker() (Paulo Alcantara) [RHEL-138235] {CVE-2023-53052}

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-2026-6037.html

Plugin Details

Severity: High

ID: 304490

File Name: oraclelinux_ELSA-2026-6037.nasl

Version: 1.1

Type: local

Agent: unix

Published: 4/1/2026

Updated: 4/1/2026

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

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

CVSS Score Source: CVE-2026-23209

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/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 Ease: No known exploits are available

Patch Publication Date: 3/30/2026

Vulnerability Publication Date: 7/4/2025

Reference Information

CVE: CVE-2025-38180, CVE-2026-23204, CVE-2026-23209