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RHEL 10 : kernel (RHSA-2025:21118)

high Nessus Plugin ID 275177

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Synopsis

The remote Red Hat host is missing one or more security updates for kernel.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:21118 advisory.

 The kernel packages contain the Linux kernel, the core of any Linux operating system.

 Security Fix(es):

 * kernel: do_change_type(): refuse to operate on unmounted/not ours mounts (CVE-2025-38498)

 * kernel: NFS: Fix a race when updating an existing write (CVE-2025-39697)

 * kernel: vsock/virtio: Validate length in packet header before skb_put() (CVE-2025-39718)

 * kernel: ipv6: sr: Fix MAC comparison to be constant-time (CVE-2025-39702)

 * kernel: mm: swap: fix potential buffer overflow in setup_clusters() (CVE-2025-39727)

 * kernel: ALSA: usb-audio: Validate UAC3 cluster segment descriptors (CVE-2025-39757)

 * kernel: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (CVE-2025-39751)

 * kernel: x86/vmscape: Add conditional IBPB mitigation (CVE-2025-40300)

 * kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare (CVE-2025-39817)

 * kernel: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() (CVE-2025-39849)

 * kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path (CVE-2025-39841)

 * kernel: kernfs: Fix UAF in polling when open file is released (CVE-2025-39881)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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 RHEL kernel package based on the guidance in RHSA-2025:21118.

See Also

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=2384422

https://bugzilla.redhat.com/show_bug.cgi?id=2393481

https://bugzilla.redhat.com/show_bug.cgi?id=2393507

https://bugzilla.redhat.com/show_bug.cgi?id=2393533

https://bugzilla.redhat.com/show_bug.cgi?id=2393733

https://bugzilla.redhat.com/show_bug.cgi?id=2394615

https://bugzilla.redhat.com/show_bug.cgi?id=2394624

https://bugzilla.redhat.com/show_bug.cgi?id=2394627

https://bugzilla.redhat.com/show_bug.cgi?id=2395805

https://bugzilla.redhat.com/show_bug.cgi?id=2396928

https://bugzilla.redhat.com/show_bug.cgi?id=2396944

https://bugzilla.redhat.com/show_bug.cgi?id=2397558

http://www.nessus.org/u?02d69d89

https://access.redhat.com/errata/RHSA-2025:21118

Plugin Details

Severity: High

ID: 275177

File Name: redhat-RHSA-2025-21118.nasl

Version: 1.1

Type: local

Agent: unix

Published: 11/12/2025

Updated: 11/12/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.3

Temporal Score: 5.4

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

CVSS Score Source: CVE-2025-39718

CVSS v3

Risk Factor: High

Base Score: 7.6

Temporal Score: 6.6

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:python3-perf, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k, p-cpe:/a:redhat:enterprise_linux:kernel-64k-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-64k-devel, p-cpe:/a:redhat:enterprise_linux:kernel-64k-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-64k-modules, p-cpe:/a:redhat:enterprise_linux:kernel-64k-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-uki-virt, p-cpe:/a:redhat:enterprise_linux:kernel-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-uki-virt, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-core, p-cpe:/a:redhat:enterprise_linux:rtla, p-cpe:/a:redhat:enterprise_linux:libperf, p-cpe:/a:redhat:enterprise_linux:rv, p-cpe:/a:redhat:enterprise_linux:kernel-uki-virt-addons, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-modules-extra, cpe:/o:redhat:enterprise_linux:10.1, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra-matched

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/12/2025

Vulnerability Publication Date: 7/10/2025

Reference Information

CVE: CVE-2025-38498, CVE-2025-39697, CVE-2025-39702, CVE-2025-39718, CVE-2025-39727, CVE-2025-39757, CVE-2025-39817, CVE-2025-39841, CVE-2025-39849, CVE-2025-39881, CVE-2025-40300

CWE: 120, 125, 20, 208, 362, 402, 416, 787

RHSA: 2025:21118