ESB-2026.5741

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.5741 Security update for the Linux Kernel RT (Live Patch 3 for SUSE Linux Enterprise 16) 27 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel RT (Live Patch 3 for SUSE Linux Enterprise 16) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-43284 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-202621773-1 Comment: CVSS (Max): 8.8 CVE-2026-43284 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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:C/C:H/I:H/A:H EPSS (Max): 1.1% (78th) CVE-2026-43284 2026-05-26 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for the Linux Kernel RT (Live Patch 3 for SUSE Linux Enterprise 16) Announcement ID: SUSE-SU-2026:21773-1 Release Date: 2026-05-18T09:06:47Z Rating: important References: o bsc#1264459 Cross-References: o CVE-2026-43284 o CVE-2026-43284 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N /S:C/C:H/I:H/A:H o CVE-2026-43284 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/ CVSS scores: S:C/C:H/I:H/A:H o CVE-2026-43284 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:C/C:H/I:H/A:H Affected o SUSE Linux Micro 6.2 Products: An update that solves one vulnerability can now be installed. Description: This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.8.1 fixes one security issue The following security issue was fixed: o CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags (bsc# 1264459). 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 6.2 zypper in -t patch SUSE-SL-Micro-6.2-771=1 Package List: o SUSE Linux Micro 6.2 (x86_64) kernel-livepatch-6_12_0-160000_8-rt-debuginfo-6-160000.1.1 kernel-livepatch-6_12_0-160000_8-rt-6-160000.1.1 kernel-livepatch-SLE16-RT_Update_3-debugsource-6-160000.1.1 References: o https://www.suse.com/security/cve/CVE-2026-43284.html o https://bugzilla.suse.com/show_bug.cgi?id=1264459 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================