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SUSE: Kernel Important Use-After-Free & TLS Issues Fix 2025:4306-1

suse
Calendar Grey November 28, 2025
Dist Suse Esm H88
Critical SUSE kernel security advisory addresses significant threats impacting performance and integrity through patches.
* bsc#1248672 * bsc#1249537 Cross-References: * CVE-2025-38500

Summary

## This update for the SUSE Linux Enterprise kernel 6.4.0-150700.53.11 fixes various security issues The following security issues were fixed: * 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 Enterprise Live Patching 15-SP7 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP7-2025-4306=1 SUSE-SLE- Module-Live-Patching-15-SP7-2025-4298=1 SUSE-SLE-Module-Live- Patching-15-SP7-2025-4307=1 ## Package List:

Topics%20covered

Topics Covered

security advisory SuSE important kernel TLS use-after-free

References

* bsc#1248672

* bsc#1249537

Cross-

* CVE-2025-38500

* CVE-2025-38616

CVSS scores:

* 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 Enterprise Live Patching 15-SP7

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP7

* SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves two vulnerabilities can now be installed.

##

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:4306-1
Release Date: 2025-11-28T15:33:26Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important kernel TLS use-after-free

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