SUSE SLES15 Security Update : kernel RT (Live Patch 6 for SUSE Linux Enterprise 15 SP7) (SUSE-SU-2026:0147-1)

high Nessus Plugin ID 294799

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-2026:0147-1 advisory.

This update for the SUSE Linux Enterprise kernel 6_4_0-150700.7.22 fixes various security issues

The following security issues were fixed:

- CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (bsc#1251787).
- CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253437).

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_0-150700_7_22-rt package.

See Also

https://bugzilla.suse.com/1251787

https://bugzilla.suse.com/1253437

http://www.nessus.org/u?08ef8c0c

https://www.suse.com/security/cve/CVE-2023-53676

https://www.suse.com/security/cve/CVE-2025-40204

Plugin Details

Severity: High

ID: 294799

File Name: suse_SU-2026-0147-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 1/20/2026

Updated: 1/20/2026

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: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-40204

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

CVSS Score Source: CVE-2023-53676

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-livepatch-6_4_0-150700_7_22-rt, cpe:/o:novell:suse_linux:15

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/17/2026

Vulnerability Publication Date: 9/4/2021

Reference Information

CVE: CVE-2023-53676, CVE-2025-40204

SuSE: SUSE-SU-2026:0147-1