SUSE SLES12 Security Update : kernel (Live Patch 85 for SUSE Linux Enterprise 12 SP5) (SUSE-SU-2026:3820-1)

critical Nessus Plugin ID 341657

Synopsis

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

Description

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3820-1 advisory.

This update for the SUSE Linux Enterprise Kernel 4.12.14-122.320 fixes various security issues:

The following security issues were fixed:

- CVE-2025-40204,CVE-2026-53224,CVE-2026-53246: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing (bsc#1253437 bsc#1270023 bsc#1270024).
- CVE-2026-52956: libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() (bsc#1272139).
- CVE-2026-64600: xfs: resample the data fork mapping after cycling ILOCK (RefluXFS) (bsc#1271543).

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 kgraft-patch-4_12_14-122_320-default package.

See Also

https://bugzilla.suse.com/1270023

https://bugzilla.suse.com/1270024

https://bugzilla.suse.com/1271543

https://bugzilla.suse.com/1272139

https://www.suse.com/security/cve/CVE-2026-52956

https://www.suse.com/security/cve/CVE-2026-53224

https://www.suse.com/security/cve/CVE-2026-53246

https://www.suse.com/security/cve/CVE-2026-64600

http://www.nessus.org/u?4a77f88a

Plugin Details

Severity: Critical

ID: 341657

File Name: suse_SU-2026-3820-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/31/2026

Updated: 8/31/2026

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: 7.9

Percentile: 99.36

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-2026-53246

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:12, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_320-default

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: 8/26/2026

Vulnerability Publication Date: 6/24/2026

Reference Information

CVE: CVE-2026-52956, CVE-2026-53224, CVE-2026-53246, CVE-2026-64600

SuSE: SUSE-SU-2026:3820-1