Detections
Analytics

Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50373)

medium Nessus Plugin ID 325284

Synopsis

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

Description

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50373 advisory.

 - net/sched: fix pedit partial COW leading to page cache corruption (Rajat Gupta) [Orabug: 39668793] {CVE-2026-46331}
 - net: skbuff: fix missing zerocopy reference in pskb_carve helpers (Minh Nguyen) [Orabug: 39648952] {CVE-2026-52943}
 - arm64: errata: Mitigate TLBI errata on various Arm CPUs (Mark Rutland) [Orabug: 39548689] {CVE-2025-10263}
 - net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null (Cezar Bulinaru) [Orabug: 39526881] {CVE-2022-50073}
 - batman-adv: hold claim backbone gateways by reference (Haoze Xie) [Orabug: 39262374] {CVE-2026-31657}
 - net: skbuff: propagate shared-frag marker through frag-transfer helpers (Hyunwoo Kim) [Orabug:
 39368827] {CVE-2026-46300}
 - ptrace: slightly saner 'get_dumpable()' logic (Linus Torvalds) [Orabug: 39384274] {CVE-2026-46333}
 - Revert 'mm/hugetlb: add option to allows disabling CVE-2025-38085 mitigation' (Samasth Norway Ananda) [Orabug: 38474901]
 - x86/CPU/AMD: Add a fix for AMD-SB-7052 (Prathyushi Nangia) [Orabug: 39327141] {CVE-2025-54518}
 - xfrm: esp: ipv4: fix up flags setting (Greg Kroah-Hartman) [Orabug: 39342679] {CVE-2026-43284}
 - xfrm: esp: avoid in-place decrypt on shared skb frags (Kuan-Ting Chen) [Orabug: 39342679] {CVE-2026-43284}
 - nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (Jeff Layton) [Orabug: 39167616] {CVE-2026-31402}
 - net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (Victor Nogueira) [Orabug: 39103230] {CVE-2026-23270}

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-2026-50373.html

Plugin Details

Severity: Medium

ID: 325284

File Name: oraclelinux_ELSA-2026-50373.nasl

Version: 1.2

Type: Local

Agent: unix

Published: 7/6/2026

Updated: 7/6/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.36

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2022-50073

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek-container, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek64k-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-modules-extra, cpe:/o:oracle:linux:9:8:baseos_patch, p-cpe:/a:oracle:linux:kernel-uek-modules, p-cpe:/a:oracle:linux:kernel-uek64k, 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-uek64k-modules, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:bpftool, p-cpe:/a:oracle:linux:kernel-uek-debug-core, p-cpe:/a:oracle:linux:kernel-uek-debug-modules, p-cpe:/a:oracle:linux:kernel-uek64k-devel, p-cpe:/a:oracle:linux:kernel-uek-container-debug, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-extra, p-cpe:/a:oracle:linux:kernel-uek64k-core, p-cpe:/a:oracle:linux:kernel-uek-core

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: 7/3/2026

Vulnerability Publication Date: 11/12/2024

Reference Information

CVE: CVE-2022-50073, CVE-2025-10263, CVE-2026-31657, CVE-2026-46331, CVE-2026-52943, CVE-2026-53359