Detections
Analytics
Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20558)
medium Nessus Plugin ID 274746
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Synopsis
The remote Oracle Linux host is missing a security update.Description
The remote Oracle Linux 10 / 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2025-20558 advisory.[6.12.0-103.40.4.2.el10uek]
- x86/vmscape: Warn when STIBP is disabled with SMT (Pawan Gupta) [Orabug: 38343659]
- x86/bugs: Move cpu_bugs_smt_update() down (Pawan Gupta) [Orabug: 38343659]
- x86/vmscape: Enable the mitigation (Pawan Gupta) [Orabug: 38343659]
- x86/vmscape: Add conditional IBPB mitigation (Pawan Gupta) [Orabug: 38343659]
- x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier() (Josh Poimboeuf) [Orabug: 38343659]
- x86/bugs: Rename entry_ibpb() to write_ibpb() (Josh Poimboeuf) [Orabug: 38343659]
- x86/vmscape: Add old Intel CPUs to affected list (Pawan Gupta) [Orabug: 38343659]
- x86/vmscape: Enumerate VMSCAPE bug (Pawan Gupta) [Orabug: 38343659]
- Documentation/hw-vuln: Add VMSCAPE documentation (Pawan Gupta) [Orabug: 38343659]
Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 274746
File Name: oraclelinux_ELSA-2025-20558.nasl
Version: 1.1
Type: local
Agent: unix
Published: 11/11/2025
Updated: 11/11/2025
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:N
CVSS Score Source: CVE-2025-40300
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-tools, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:kernel-uek-core, p-cpe:/a:oracle:linux:kernel-uek-debug-core, p-cpe:/a:oracle:linux:kernel-uek-debug-modules, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-modules, p-cpe:/a:oracle:linux:kernel-uek-modules-extra, p-cpe:/a:oracle:linux:kernel-uek64k, p-cpe:/a:oracle:linux:kernel-uek64k-core, p-cpe:/a:oracle:linux:kernel-uek64k-modules, p-cpe:/a:oracle:linux:kernel-uek64k-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-core, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-deprecated, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-desktop, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-extra-netfilter, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-usb, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-wireless, p-cpe:/a:oracle:linux:kernel-uek-modules-core, p-cpe:/a:oracle:linux:kernel-uek-modules-deprecated, p-cpe:/a:oracle:linux:kernel-uek-modules-desktop, p-cpe:/a:oracle:linux:kernel-uek-modules-extra-netfilter, p-cpe:/a:oracle:linux:kernel-uek-modules-usb, p-cpe:/a:oracle:linux:kernel-uek-modules-wireless, p-cpe:/a:oracle:linux:kernel-uek64k-modules-core, p-cpe:/a:oracle:linux:kernel-uek64k-modules-deprecated, p-cpe:/a:oracle:linux:kernel-uek64k-modules-desktop, p-cpe:/a:oracle:linux:kernel-uek64k-modules-extra-netfilter, p-cpe:/a:oracle:linux:kernel-uek64k-modules-usb, p-cpe:/a:oracle:linux:kernel-uek64k-modules-wireless, cpe:/o:oracle:linux:10, p-cpe:/a:oracle:linux:kernel-uek64k-devel
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: 9/9/2025
Vulnerability Publication Date: 9/11/2025
Reference Information
CVE: CVE-2025-40300