SUSE SLES15 Security Update : kernel RT (Live Patch 19 for SUSE Linux Enterprise 15 SP7) (SUSE-SU-2026:5020-1)

critical Nessus Plugin ID 375376

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-2026:5020-1 advisory.

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.72 fixes various security issues:

The following security issues were fixed:

- CVE-2026-53381: virtiofs: fix UAF on submount umount (bsc#1271837).
- CVE-2026-64217: netfs: Fix overrun check in netfs_extract_user_iter() (bsc#1272874).
- CVE-2026-68426: xfrm: fix stale skb->prev after async crypto steals a GSO segment (bsc#1274712).
- CVE-2026-74469: sctp: prevent peer transport count overflow (bsc#1280693).
- CVE-2026-74669: ipvs: clear IPv4 options after rebasing tunnel ICMP errors (bsc#1277399).
- CVE-2026-89544: SUNRPC: fix gssx_dec_option_array error path bugs (bsc#1280760).
- CVE-2026-89551: SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow (bsc#1280728).
- CVE-2026-89674: nfsd: fix XDR length calculation in nfsd4_ff_encode_layoutget (bsc#1280285).
- CVE-2026-98432: ipv4: free inet_opt and ireq_opt after an RCU grace period (bsc#1285686).

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_72-rt package.

Plugin Details

Severity: Critical

ID: 375376

File Name: suse_SU-2026-5020-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 11/3/2026

Updated: 11/3/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

Percentile: 99.72

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-98432

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:kernel-livepatch-6_4_0-150700_7_72-rt

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: 11/2/2026

Vulnerability Publication Date: 6/4/2026

Reference Information

CVE: CVE-2026-53381, CVE-2026-64217, CVE-2026-68426, CVE-2026-74469, CVE-2026-74669, CVE-2026-89544, CVE-2026-89551, CVE-2026-89674, CVE-2026-98432

SuSE: SUSE-SU-2026:5020-1

Detections

Analytics