SUSE SLES15 Security Update : kernel RT (Live Patch 6 for SLE 15 SP6) (SUSE-SU-2025:03100-1)

high Nessus Plugin ID 264460

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03100-1 advisory.

This update for the Linux Kernel 6.4.0-150600_10_20 fixes several issues.

The following security issues were fixed:

- CVE-2025-38087: net/sched: fix use-after-free in taprio_dev_notifier (bsc#1245504).
- CVE-2025-21999: proc: fix UAF in proc_get_inode() (bsc#1242579).
- CVE-2025-38001: net_sched: hfsc: Address reentrant enqueue adding class to eltree twice (bsc#1244235).
- CVE-2025-21659: netdev: prevent accessing NAPI instances from another namespace (bsc#1236207).
- CVE-2025-38000: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() (bsc#1245775).
- CVE-2025-37890: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc (bsc#1245791).
- CVE-2025-21701: net: avoid race between device unregistration and ethnl ops (bsc#1245805).
- CVE-2025-38212: ipc: fix to protect IPCS lookups using RCU (bsc#1246030).

Tenable has extracted the preceding description block directly from the SUSE 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 kernel-livepatch-6_4_0-150600_10_20-rt package.

See Also

https://bugzilla.suse.com/1236207

https://bugzilla.suse.com/1242579

https://bugzilla.suse.com/1244235

https://bugzilla.suse.com/1245505

https://bugzilla.suse.com/1245775

https://bugzilla.suse.com/1245791

https://bugzilla.suse.com/1245805

https://bugzilla.suse.com/1246030

https://bugzilla.suse.com/1248108

http://www.nessus.org/u?8e3127d2

https://www.suse.com/security/cve/CVE-2025-21659

https://www.suse.com/security/cve/CVE-2025-21701

https://www.suse.com/security/cve/CVE-2025-21999

https://www.suse.com/security/cve/CVE-2025-37890

https://www.suse.com/security/cve/CVE-2025-38000

https://www.suse.com/security/cve/CVE-2025-38001

https://www.suse.com/security/cve/CVE-2025-38087

https://www.suse.com/security/cve/CVE-2025-38212

Plugin Details

Severity: High

ID: 264460

File Name: suse_SU-2025-03100-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/10/2025

Updated: 9/10/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2025-38212

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

CVSS Score Source: CVE-2025-21999

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-livepatch-6_4_0-150600_10_20-rt, cpe:/o:novell:suse_linux:15

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/8/2025

Vulnerability Publication Date: 1/21/2025

Reference Information

CVE: CVE-2025-21659, CVE-2025-21701, CVE-2025-21999, CVE-2025-37890, CVE-2025-38000, CVE-2025-38001, CVE-2025-38087, CVE-2025-38212

SuSE: SUSE-SU-2025:03100-1