RHEL 9 : kernel (RHSA-2025:21091)

high Nessus Plugin ID 275174

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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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:21091 advisory.

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

Security Fix(es):

* kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug (CVE-2022-48701)

* kernel: ipv6: mcast: Delay put pmc->idev in mld_del_delrec() (CVE-2025-38550)

* kernel: sctp: linearize cloned gso packets in sctp_rcv (CVE-2025-38718)

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

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

* kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CVE-2025-39730)

* kernel: wifi: mac80211: check S1G action frame size (CVE-2023-53257)

* kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies() (CVE-2023-53213)

* kernel: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes (CVE-2023-53185)

* kernel: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data (CVE-2023-53232)

* kernel: mm: fix zswap writeback race condition (CVE-2023-53178)

* kernel: wifi: mwifiex: Fix OOB and integer underflow when rx packets (CVE-2023-53226)

* kernel: Bluetooth: L2CAP: Fix use-after-free (CVE-2023-53305)

* kernel: pstore/ram: Check start of empty przs during init (CVE-2023-53331)

* kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy (CVE-2022-50367)

* kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails (CVE-2022-50356)

* kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags (CVE-2023-53354)

* kernel: mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() (CVE-2023-53401)

* kernel: Bluetooth: Fix potential use-after-free when clear keys (CVE-2023-53386)

* kernel: Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)

* kernel: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() (CVE-2022-50408)

* kernel: iomap: iomap: fix memory corruption when recording errors during writeback (CVE-2022-50406)

* kernel: crypto: xts - Handle EBUSY correctly (CVE-2023-53494)

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-2025:21091.

Plugin Details

Severity: High

ID: 275174

File Name: redhat-RHSA-2025-21091.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

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: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2022-48701

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:python3-perf, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, cpe:/o:redhat:rhel_e4s:9.0, p-cpe:/a:redhat:enterprise_linux:kernel-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel

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: 9/4/2021

Reference Information

CVE: CVE-2022-48701, CVE-2022-50356, CVE-2022-50367, CVE-2022-50386, CVE-2022-50406, CVE-2022-50408, CVE-2023-53178, CVE-2023-53185, CVE-2023-53213, CVE-2023-53226, CVE-2023-53232, CVE-2023-53257, CVE-2023-53305, CVE-2023-53331, CVE-2023-53354, CVE-2023-53386, CVE-2023-53401, CVE-2023-53494, CVE-2025-38550, CVE-2025-38718, CVE-2025-39697, CVE-2025-39702, CVE-2025-39730

CWE: 125, 1285, 129, 208, 362, 367, 416, 476, 664

RHSA: 2025:21091

Detections

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