ESB-2026.3103
PUBLISHED
CVSS 7.800000190734863 HIGH
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AUSCERT External Security Bulletin Redistribution
ESB-2026.3103
Security update for the Linux Kernel (Live Patch 9 for SUSE Linux
Enterprise Micro 6.0)
30 March 2026
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AUSCERT Security Bulletin Summary
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Product: Linux Kernel (Live Patch 9 for SUSE Linux Enterprise Micro 6.0)
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2025-40258 CVE-2025-40284 CVE-2025-38488
CVE-2025-71085 CVE-2025-40297 CVE-2025-68813
Original Bulletin:
https://www.suse.com/support/update/announcement/2026/suse-su-202620861-1
Comment: CVSS (Max): 7.8 CVE-2025-40284 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (Max): 0.1% (16th) CVE-2025-68813 2026-03-29
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Security update for the Linux Kernel (Live Patch 9 for SUSE Linux Enterprise
Micro 6.0)
Announcement ID: SUSE-SU-2026:20861-1
Release Date: 2026-03-24T16:49:24Z
Rating: important
o bsc#1247240
o bsc#1255053
o bsc#1255895
References: o bsc#1256624
o bsc#1256644
o bsc#1257669
o CVE-2025-38488
o CVE-2025-40258
o CVE-2025-40284
Cross-References: o CVE-2025-40297
o CVE-2025-68813
o CVE-2025-71085
o CVE-2025-38488 ( 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
o CVE-2025-38488 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N
/S:U/C:H/I:H/A:H
o CVE-2025-38488 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:H/I:H/A:H
o CVE-2025-40258 ( 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
o CVE-2025-40258 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N
/S:U/C:H/I:H/A:H
o CVE-2025-40284 ( 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
o CVE-2025-40284 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N
/S:U/C:H/I:H/A:H
CVSS scores: o CVE-2025-40297 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L
/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
o CVE-2025-40297 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N
/S:U/C:H/I:H/A:H
o CVE-2025-68813 ( 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
o CVE-2025-68813 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N
/S:U/C:N/I:N/A:H
o CVE-2025-71085 ( 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
o CVE-2025-71085 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N
/S:U/C:N/I:N/A:H
o CVE-2025-71085 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:N/I:N/A:H
Affected o SUSE Linux Micro 6.0
Products:
An update that solves six vulnerabilities can now be installed.
Description:
This update for the SUSE Linux Enterprise Kernel 6.4.0-31.1 fixes various
security issues
The following security issues were fixed:
o CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using
async crypto (bsc#1247240).
o CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#
1255053).
o CVE-2025-40284: Bluetooth: MGMT: cancel mesh send timer when hdev removed
(bsc#1257669).
o CVE-2025-40297: net: bridge: fix use-after-free due to MST port state
bypass (bsc#1255895).
o CVE-2025-68813: ipvs: fix ipv4 null-ptr-deref in route error path (bsc#
1256644).
o CVE-2025-71085: ipv6: BUG() in pskb_expand_head() as part of
calipso_skbuff_setattr() (bsc#1256624).
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:
o SUSE Linux Micro 6.0
zypper in -t patch SUSE-SLE-Micro-6.0-kernel-311=1
Package List:
o SUSE Linux Micro 6.0 (s390x x86_64)
kernel-livepatch-MICRO-6-0_Update_9-debugsource-13-1.2
kernel-livepatch-6_4_0-31-default-13-1.2
kernel-livepatch-6_4_0-31-default-debuginfo-13-1.2
References:
o https://www.suse.com/security/cve/CVE-2025-38488.html
o https://www.suse.com/security/cve/CVE-2025-40258.html
o https://www.suse.com/security/cve/CVE-2025-40284.html
o https://www.suse.com/security/cve/CVE-2025-40297.html
o https://www.suse.com/security/cve/CVE-2025-68813.html
o https://www.suse.com/security/cve/CVE-2025-71085.html
o https://bugzilla.suse.com/show_bug.cgi?id=1247240
o https://bugzilla.suse.com/show_bug.cgi?id=1255053
o https://bugzilla.suse.com/show_bug.cgi?id=1255895
o https://bugzilla.suse.com/show_bug.cgi?id=1256624
o https://bugzilla.suse.com/show_bug.cgi?id=1256644
o https://bugzilla.suse.com/show_bug.cgi?id=1257669
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