Detections
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Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2025-20406)

medium Nessus Plugin ID 241596

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Synopsis

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

Description

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-20406 advisory.

 - Add Zen34 clients (Borislav Petkov (AMD)) [Orabug: 38129026] {CVE-2024-36350} {CVE-2024-36357}
 - x86/process: Move the buffer clearing before MONITOR (Kim Phillips) [Orabug: 38129026] {CVE-2024-36350} {CVE-2024-36357}
 - KVM: SVM: Advertize TSA CPUID bits to guests (Borislav Petkov (AMD)) [Orabug: 38129026] {CVE-2024-36350} {CVE-2024-36357}
 - x86/bugs: Add a Transient Scheduler Attacks mitigation (Borislav Petkov (AMD)) [Orabug: 38129026] {CVE-2024-36350} {CVE-2024-36357}
 - KVM: x86: add support for CPUID leaf 0x80000021 (Paolo Bonzini) [Orabug: 38129026] {CVE-2024-36350} {CVE-2024-36357}
 - x86/bugs: Rename MDS machinery to something more generic (Borislav Petkov (AMD)) [Orabug: 38129026] {CVE-2024-36350} {CVE-2024-36357}
 - x86/CPU/AMD: Add ZenX generations flags (Borislav Petkov (AMD)) [Orabug: 38129026] {CVE-2024-36350} {CVE-2024-36357}
 - x86/bugs: Free X86_BUG_AMD_APIC_C1E and X86_BUG_AMD_E400 bits (Boris Ostrovsky) [Orabug: 38129026] {CVE-2024-36350} {CVE-2024-36357}
 - selftest/x86/bugs: Add selftests for ITS (Pawan Gupta) [Orabug: 38128642] {CVE-2024-28956}
 - x86/its: Align RETs in BHB clear sequence to avoid thunking (Pawan Gupta) [Orabug: 38128642] {CVE-2024-28956}
 - x86/its: Add 'vmexit' option to skip mitigation on some CPUs (Pawan Gupta) [Orabug: 38128642] {CVE-2024-28956}
 - x86/its: Enable Indirect Target Selection mitigation (Pawan Gupta) [Orabug: 38128642] {CVE-2024-28956}
 - x86/its: Add support for ITS-safe return thunk (Pawan Gupta) [Orabug: 38128642] {CVE-2024-28956}
 - x86/its: Add support for ITS-safe indirect thunk (Pawan Gupta) [Orabug: 38128642] {CVE-2024-28956}
 - x86/its: Enumerate Indirect Target Selection (ITS) bug (Pawan Gupta) [Orabug: 38128642] {CVE-2024-28956}

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-2025-20406.html

Plugin Details

Severity: Medium

ID: 241596

File Name: oraclelinux_ELSA-2025-20406.nasl

Version: 1.1

Type: local

Agent: unix

Published: 7/9/2025

Updated: 7/9/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

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

CVSS Score Source: CVE-2024-36357

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.9

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.7

Threat Score: 1.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2024-28956

Vulnerability Information

CPE: cpe:/o:oracle:linux:8:10:baseos_patch, p-cpe:/a:oracle:linux:kernel-uek-container, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, cpe:/o:oracle:linux:7, cpe:/a:oracle:linux:7:9:uekr6_els, cpe:/o:oracle:linux:8, 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-container-debug, p-cpe:/a:oracle:linux:kernel-uek-tools, p-cpe:/a:oracle:linux:kernel-uek

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: 7/7/2025

Vulnerability Publication Date: 5/13/2025

Reference Information

CVE: CVE-2024-28956, CVE-2024-36350, CVE-2024-36357