SUSE-SU-2025:21118-1: important: Security update for kernel-livepatch-MICRO-6-0-RT_Update_6

[SLE-SECURITY-UPDATES]

# Security update for kernel-livepatch-MICRO-6-0-RT_Update_6

Announcement ID: SUSE-SU-2025:21118-1  
Release Date: 2025-11-28T08:19:29Z  
Rating: important  
References:

  * bsc#1242882
  * bsc#1248672
  * bsc#1249537

  
Cross-References:

  * CVE-2025-23145
  * CVE-2025-38500
  * CVE-2025-38616

  
CVSS scores:

  * CVE-2025-23145 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-23145 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-23145 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-38500 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-38500 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38500 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38616 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2025-38616 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

  
Affected Products:

  * SUSE Linux Micro 6.1

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for kernel-livepatch-MICRO-6-0-RT_Update_6 fixes the following
issues:

  * CVE-2025-23145: mptcp: fix NULL pointer in can_accept_new_subflow
    (bsc#1242882)
  * CVE-2025-38500: xfrm: interface: fix use-after-free after changing
    collect_md xfrm interface (bsc#1248672)
  * CVE-2025-38616: tls: handle data disappearing from under the TLS ULP
    (bsc#1249537)

## 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:

  * SUSE Linux Micro 6.1  
    zypper in -t patch SUSE-SLE-Micro-6.1-kernel-211=1

## Package List:

  * SUSE Linux Micro 6.1 (x86_64)
    * kernel-livepatch-6_4_0-28-rt-10-3.1
    * kernel-livepatch-6_4_0-28-rt-debuginfo-10-3.1
    * kernel-livepatch-MICRO-6-0-RT_Update_6-debugsource-10-3.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-23145.html
  * https://www.suse.com/security/cve/CVE-2025-38500.html
  * https://www.suse.com/security/cve/CVE-2025-38616.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1242882
  * https://bugzilla.suse.com/show_bug.cgi?id=1248672
  * https://bugzilla.suse.com/show_bug.cgi?id=1249537

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