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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.3693 Security update for the Linux Kernel (Live Patch 28 for SLE 12 SP4) 29 June 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel (Live Patch 28 for SLE 12 SP4) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2023-31436 CVE-2023-23455 CVE-2023-1390 Original Bulletin: https://www.suse.com/support/update/announcement/2023/suse-su-20232660-1 Comment: CVSS (Max): 7.8 CVE-2023-23455 (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 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for the Linux Kernel (Live Patch 28 for SLE 12 SP4) Announcement ID: SUSE-SU-2023:2660-1 Rating: important o #1207189 References: o #1210779 o #1210989 o CVE-2023-1390 Cross-References: o CVE-2023-23455 o CVE-2023-31436 o CVE-2023-1390 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2023-1390 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2023-23455 ( 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-2023-23455 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:N/I:N/A:H o CVE-2023-31436 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2023-31436 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o SUSE Linux Enterprise High Performance Computing 12 SP4 Affected o SUSE Linux Enterprise Live Patching 12-SP4 Products: o SUSE Linux Enterprise Server 12 SP4 o SUSE Linux Enterprise Server for SAP Applications 12 SP4 An update that solves three vulnerabilities can now be installed. Description: This update for the Linux Kernel 4.12.14-95_102 fixes several issues. The following security issues were fixed: o CVE-2023-23455: Fixed a denial of service inside atm_tc_enqueue in net/ sched/sch_atm.c because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results) (bsc#1207189). o CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210989). o CVE-2023-1390: Fixed remote DoS vulnerability in tipc_link_xmit() (bsc# 1210779). Patch Instructions: To install this SUSE Important 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 Enterprise Live Patching 12-SP4 zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2023-2660=1 SUSE-SLE-Live-Patching-12-SP4-2023-2659=1 Package List: o SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64) kgraft-patch-4_12_14-95_102-default-11-2.3 kgraft-patch-4_12_14-95_105-default-11-2.2 References: o https://www.suse.com/security/cve/CVE-2023-1390.html o https://www.suse.com/security/cve/CVE-2023-23455.html o https://www.suse.com/security/cve/CVE-2023-31436.html o https://bugzilla.suse.com/show_bug.cgiid=1207189 o https://bugzilla.suse.com/show_bug.cgiid=1210779 o https://bugzilla.suse.com/show_bug.cgiid=1210989 - --------------------------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://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBZJzPCMkNZI30y1K9AQggKQ//ZUhSCOi6rFf/YdObtiEmRLCgnv0PVMyG zLiAoDGrqbeFzDemJ6knquob0uEAmZ+2V2MExFH0LiAmY2RJZasWx2S7NOCpkVis EAfx2KW3yqdB3oVmLOr+PwJ3Ytu72QlLNMGw2zQwdiJfUoyP5h0CNVSHQUMbCYjP ltousHjHdGc00EfdBRhmMkwgFmYehUXFJE/eIlsobOJjndpqST6/L9pYEMNyyeIh UNdwEDmmJNrDQwFyUb/KzBO6rSRrbgkLnjD1liIwH7rk2PikMS2pC1koHvIm8VpW QXPn6ncmLNBz+JYKwqVEuN8k9rsvGoN7W759riJnd5x1iyeANK0Hbio9V7/07a/j AgQQ4S/5S1gC1IT2dxXy1YYso8th3ieDwhjAgmLWsJawY4QYhGuvzkYgVg4tFwHU X+ZxE5RrcJG0KA9yzJaVRoUvrbuXRSkdUTTO2jsM3tbbkrzmQVS3a8aIM2uUCal+ sjfbbwwVb62FHcToZVO+ULnOOqcMsbc9YI1FtLidNp+ZuowgfO10j8AxPWtjn6GM zggukWtqkIBFgrVU4XvlNo5MWbVSh/9ZKt4QdXUCEYWkiSLDA0CESr2Machg6x+4 pWQs/HtAQa5fae5tFQMpPDC9hmPQe/fOhewFPJ98JguY8Z57XrbfZXyknmAn4aqV 22aSIOR3k/w= =LJ9C -----END PGP SIGNATURE-----