RHEL 9 : kernel-rt (RHSA-2025:10829)

high Nessus Plugin ID 242059

Synopsis

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

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:10829 advisory.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: um: Fix out-of-bounds read in LDT setup (CVE-2022-49395)

* kernel: dm ioctl: prevent potential spectre v1 gadget (CVE-2022-49122)

* kernel: ipv6: mcast: extend RCU protection in igmp6_send() (CVE-2025-21759)

* kernel: Squashfs: fix handling and sanity checking of xattr_ids count (CVE-2023-52933)

* kernel: net: atm: fix use after free in lec_send() (CVE-2025-22004)

* kernel: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() (CVE-2025-22121)

* kernel: ibmvnic: Use kernel helpers for hex dumps (CVE-2025-22104)

* kernel: ext4: ignore xattrs past end (CVE-2025-37738)

* kernel: udf: Fix a slab-out-of-bounds write bug in udf_find_entry() (CVE-2022-49846)

* kernel: net: atlantic: fix aq_vec index out of range error (CVE-2022-50066)

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-rt package based on the guidance in RHSA-2025:10829.

Plugin Details

Severity: High

ID: 242059

File Name: redhat-RHSA-2025-10829.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/14/2025

Updated: 7/14/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2022-49846

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, cpe:/o:redhat:rhel_e4s:9.0, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules

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: 7/14/2025

Vulnerability Publication Date: 12/8/2022

Reference Information

CVE: CVE-2022-49122, CVE-2022-49395, CVE-2022-49846, CVE-2022-50066, CVE-2023-52933, CVE-2025-21759, CVE-2025-22004, CVE-2025-22104, CVE-2025-22121, CVE-2025-37738

CWE: 120, 125, 190, 416, 823

RHSA: 2025:10829

Detections

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