Detections
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Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50319)

critical Nessus Plugin ID 323021

Synopsis

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

Description

The remote Oracle Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50319 advisory.

 - netfilter: nf_tables: unconditionally bump set->nelems before insertion (Pablo Neira Ayuso) [Orabug:
 39562729] {CVE-2026-23272}
 - net: bonding: fix use-after-free in bond_xmit_broadcast() (Xiang Mei) [Orabug: 39556377] {CVE-2026-31419}
 - eventpoll: defer struct eventpoll free to RCU grace period (Nicholas Carlini) [Orabug: 39556391] {CVE-2026-43074}
 - batman-adv: hold claim backbone gateways by reference (Haoze Xie) [Orabug: 39556388] {CVE-2026-31657}
 - net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption (Muhammad Alifa Ramdhan) [Orabug:
 39556386] {CVE-2026-31533}
 - mptcp: fix slab-use-after-free in __inet_lookup_established (Jiayuan Chen) [Orabug: 39556381] {CVE-2026-31669}
 - net: fix fanout UAF in packet_release() via NETDEV_UP race (Yochai Eisenrich) [Orabug: 39556380] {CVE-2026-31504}
 - rtmutex: Use waiter::task instead of current in remove_waiter() (Keenan Dong) [Orabug: 39556379] {CVE-2026-43499}
 - xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (Michal Kosiorek) [Orabug: 39556375] {CVE-2026-46116}

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-2026-50319.html

Plugin Details

Severity: Critical

ID: 323021

File Name: oraclelinux_ELSA-2026-50319.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/26/2026

Updated: 6/26/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

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-2026-43037

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:kernel-uek64k-modules-extra-netfilter, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek64k-modules-deprecated, p-cpe:/a:oracle:linux:kernel-uek-modules-core, p-cpe:/a:oracle:linux:kernel-uek-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-modules-wireless, p-cpe:/a:oracle:linux:kernel-uek64k-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-modules, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-core, p-cpe:/a:oracle:linux:kernel-uek64k, p-cpe:/a:oracle:linux:kernel-uek64k-modules, p-cpe:/a:oracle:linux:kernel-uek64k-modules-desktop, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-modules-deprecated, p-cpe:/a:oracle:linux:kernel-uek-modules-usb, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-wireless, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-extra-netfilter, p-cpe:/a:oracle:linux:kernel-uek64k-modules-usb, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-desktop, p-cpe:/a:oracle:linux:kernel-uek-debug-core, p-cpe:/a:oracle:linux:kernel-uek-modules-extra-netfilter, p-cpe:/a:oracle:linux:kernel-uek-tools, p-cpe:/a:oracle:linux:kernel-uek-debug-modules, cpe:/o:oracle:linux:10, p-cpe:/a:oracle:linux:kernel-uek64k-devel, p-cpe:/a:oracle:linux:kernel-uek-modules-desktop, p-cpe:/a:oracle:linux:kernel-uek64k-modules-wireless, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-usb, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-extra, p-cpe:/a:oracle:linux:kernel-uek64k-core, p-cpe:/a:oracle:linux:kernel-uek64k-modules-core, p-cpe:/a:oracle:linux:kernel-uek-core, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-deprecated

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: 6/16/2026

Vulnerability Publication Date: 3/20/2026

Reference Information

CVE: CVE-2026-23272, CVE-2026-31419, CVE-2026-31504, CVE-2026-31533, CVE-2026-31657, CVE-2026-31669, CVE-2026-43037, CVE-2026-43074, CVE-2026-43499, CVE-2026-46116