Alerts This Week
Warning Icon 1 1,154
Alerts This Week
Warning Icon 1 1,154

SUSE: Kernel Important Update for Live Patch 15 SP6 Advisory 2026:0204-1

suse
Calendar Grey January 21, 2026
Dist Suse Esm H88
Update for SUSE kernel 15 SP6 fixes critical issues related to buffer overflow and MAC comparison.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise kernel 6.4.0-150600.23.73 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). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.6 zypper in -t patch SUSE-2026-204=1 * SUSE Linux Enterprise Live Patching 15-SP6 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-204=1 ## Package List: * openSUSE Leap 15.6 (ppc64le s390x x86_64)

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important kernel mac comparison

References

* bsc#1251787

* bsc#1253437

Cross-

* CVE-2023-53676

* CVE-2025-40204

CVSS scores:

* CVE-2023-53676 ( SUSE ): 8.5

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2023-53676 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-40204 ( SUSE ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

* CVE-2025-40204 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Products:

* openSUSE Leap 15.6

* SUSE Linux Enterprise Live Patching 15-SP6

* SUSE Linux Enterprise Real Time 15 SP6

* SUSE Linux Enterprise Server 15 SP6

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

An update that solves two vulnerabilities can now be installed.

##

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0204-1
Release Date: 2026-01-21T13:33:36Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important kernel mac comparison

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here