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SUSE SLES15 Security Update : kernel RT (Live Patch 8 for SUSE Linux Enterprise 15 SP7) (SUSE-SU-2026:2500-1)

critical Nessus Plugin ID 323096

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-2026:2500-1 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-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1260907).
 - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261640).
 - CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263088).
 - CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902).
 - CVE-2026-43503: final dirty.frag related fixes (bsc#1266229).
 - CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282).
 - net/sched: fix pedit partial COW leading to page cache (bsc#1267625).

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.

See Also

https://bugzilla.suse.com/1260907

https://bugzilla.suse.com/1261640

https://bugzilla.suse.com/1263088

https://bugzilla.suse.com/1263902

https://bugzilla.suse.com/1266229

https://bugzilla.suse.com/1267625

https://bugzilla.suse.com/1268282

https://lists.suse.com/pipermail/sle-updates/2026-June/047463.html

https://www.suse.com/security/cve/CVE-2026-23278

https://www.suse.com/security/cve/CVE-2026-31402

https://www.suse.com/security/cve/CVE-2026-31504

https://www.suse.com/security/cve/CVE-2026-31694

https://www.suse.com/security/cve/CVE-2026-43503

https://www.suse.com/security/cve/CVE-2026-46323

Plugin Details

Severity: Critical

ID: 323096

File Name: suse_SU-2026-2500-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/26/2026

Updated: 6/26/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-31402

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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: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: 6/22/2026

Vulnerability Publication Date: 3/20/2026

Reference Information

CVE: CVE-2026-23278, CVE-2026-31402, CVE-2026-31504, CVE-2026-31694, CVE-2026-43503, CVE-2026-46323

SuSE: SUSE-SU-2026:2500-1