SUSE SLES15 Security Update : kernel RT (Live Patch 8 for SUSE Linux Enterprise 15 SP7) (SUSE-SU-2026:1189-1)

high Nessus Plugin ID 305111

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-2026:1189-1 advisory.

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.28 fixes various security issues

The following security issues were fixed:

- CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf (bsc#1256780).
- CVE-2026-22999: net/sched: sch_qfq: do not free existing class in qfq_change_class() (bsc#1257238).
- CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1258051).
- CVE-2026-23111: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() (bsc#1258183).
- CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink() (bsc#1258784).

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_28-rt package.

Plugin Details

Severity: High

ID: 305111

File Name: suse_SU-2026-1189-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 4/7/2026

Updated: 4/7/2026

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: 6.7

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-2026-23209

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:novell:suse_linux:kernel-livepatch-6_4_0-150700_7_28-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: 4/5/2026

Vulnerability Publication Date: 1/14/2026

Reference Information

CVE: CVE-2025-71120, CVE-2026-22999, CVE-2026-23074, CVE-2026-23111, CVE-2026-23209

SuSE: SUSE-SU-2026:1189-1

Detections

Analytics