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SUSE: Important Kernel RT Security Update 2026:0144-1 – Buffer Overflow Fix

suse
Calendar Grey January 19, 2026
Dist Suse Esm H88
Update available addressing critical security concerns in SUSE's kernel RT; resolves multiple vulnerabilities.
An update that solves seven vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise kernel 6.4.0-150700.7.8 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-2025-38476: rpl: Fix use-after-free in rpl_do_srh_inline() (bsc#1251203). * CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248400). * CVE-2025-38588: ipv6: prevent infinite loop in rt6_nlmsg_size() (bsc#1249241). * CVE-2025-38608: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls (bsc#1248670). * CVE-2025-39682: tls: fix handling of zero-length records on the rx_list (bsc#1250192). * CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253437). ## Patch Instructions:

Topics%20covered

Topics Covered

security advisory security issue buffer overflow important kernel SuSE Linux

References

* bsc#1248400

* bsc#1248670

* bsc#1249241

* bsc#1250192

* bsc#1251203

* bsc#1251787

* bsc#1253437

Cross-

* CVE-2023-53676

* CVE-2025-38476

* CVE-2025-38572

* CVE-2025-38588

* CVE-2025-38608

* CVE-2025-39682

* 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-2025-38476 ( 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-2025-38476 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38476 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38572 ( SUSE ): 9.2

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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-2026:0144-1
Release Date: 2026-01-17T11:04:22Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue buffer overflow important kernel SuSE Linux

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