Detections
Analytics

Oracle Linux 8 : Unbreakable Enterprise kernel (ELSA-2026-500121)

critical Nessus Plugin ID 331882

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-2026-500121 advisory.

 - xfs: resample the data fork mapping after cycling ILOCK (Darrick J. Wong) [Orabug: 39776792] {CVE-2026-64600}
 - net/sched: fix pedit partial COW leading to page cache corruption (Rajat Gupta) [Orabug: 39567287] {CVE-2026-46331}
 - RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (hkbinbin) [Orabug: 39452261] {CVE-2026-46043}
 - rtmutex: Use waiter::task instead of current in remove_waiter() (Keenan Dong) [Orabug: 39426001] {CVE-2026-43499}
 - ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (Eric Dumazet) [Orabug: 39300930] {CVE-2026-43038}

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-2026-500121.html

Plugin Details

Severity: Critical

ID: 331882

File Name: oraclelinux_ELSA-2026-500121.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/4/2026

Updated: 8/4/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

Percentile: 99.82

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

CVSS Score Source: CVE-2026-43038

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.7

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

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

CVSS Score Source: CVE-2026-46043

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:kernel-uek-container-debug, p-cpe:/a:oracle:linux:kernel-uek-container, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/3/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-43038, CVE-2026-43499, CVE-2026-46043, CVE-2026-46331, CVE-2026-64600