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SUSE Linux Micro: kernel-livepatch Important Security Update CVE-2025-23145

suse
Calendar Grey December 9, 2025
Dist Suse Esm H88
Update for SUSE Linux Micro addresses four key security issues including an important fix for use-after-free vulnerabilities.
* bsc#1242882 * bsc#1245778 * bsc#1248672 * bsc#1249537

Summary

## This update for kernel-livepatch-MICRO-6-0-RT_Update_4 fixes the following issues: * CVE-2025-23145: mptcp: fix NULL pointer in can_accept_new_subflow (bsc#1242882) * CVE-2024-53141: netfilter: ipset: add missing range check in bitmap_ip_uadt (bsc#1245778) * 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 6.0 zypper in -t patch SUSE-SLE-Micro-6.0-kernel-209=1 ## Package List: * SUSE Linux Micro 6.0 (x86_64)

Topics%20covered

Topics Covered

security advisory important use-after-free TLS handling SUSE Linux Micro kernel livepatch

References

* bsc#1242882

* bsc#1245778

* bsc#1248672

* bsc#1249537

Cross-

* CVE-2024-53141

* CVE-2025-23145

* CVE-2025-38500

* CVE-2025-38616

CVSS scores:

* CVE-2024-53141 ( 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-2024-53141 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2024-53141 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:21086-1
Release Date: 2025-11-28T08:19:29Z
Rating: important

Topics%20covered

Topics Covered

security advisory important use-after-free TLS handling SUSE Linux Micro kernel livepatch

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