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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.3742 Security update for the Linux Kernel (Live Patch 29 for SLE 15 SP2) 30 June 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel (Live Patch 29 for SLE 15 SP2) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2023-31436 CVE-2023-28466 CVE-2023-23455 CVE-2023-1390 CVE-2022-4744 Original Bulletin: https://www.suse.com/support/update/announcement/2023/suse-su-20232694-1 Comment: CVSS (Max): 7.8 CVE-2023-28466 (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 29 for SLE 15 SP2) Announcement ID: SUSE-SU-2023:2694-1 Rating: important o #1207189 o #1209672 References: o #1210452 o #1210779 o #1210989 o CVE-2022-4744 o CVE-2023-1390 Cross-References: o CVE-2023-23455 o CVE-2023-28466 o CVE-2023-31436 o CVE-2022-4744 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2022-4744 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H 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-2023-28466 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2023-28466 ( NVD ): 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 ( 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 15 SP2 Affected o SUSE Linux Enterprise Live Patching 15-SP2 Products: o SUSE Linux Enterprise Server 15 SP2 o SUSE Linux Enterprise Server for SAP Applications 15 SP2 An update that solves five vulnerabilities can now be installed. Description: This update for the Linux Kernel 5.3.18-150200_24_126 fixes several issues. The following security issues were fixed: o CVE-2022-4744: Fixed double-free that could lead to DoS or privilege escalation in TUN/TAP device driver functionality (bsc#1209672). 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). o CVE-2023-28466: Fixed race condition that could lead to use-after-free or NULL pointer dereference in do_tls_getsockopt in net/tls/tls_main.c (bsc# 1210452). 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 15-SP2 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2023-2694=1 Package List: o SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64) kernel-livepatch-5_3_18-150200_24_126-default-12-150200.2.2 kernel-livepatch-SLE15-SP2_Update_29-debugsource-12-150200.2.2 kernel-livepatch-5_3_18-150200_24_126-default-debuginfo-12-150200.2.2 References: o https://www.suse.com/security/cve/CVE-2022-4744.html 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-2023-28466.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=1209672 o https://bugzilla.suse.com/show_bug.cgiid=1210452 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. 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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/ iQIVAwUBZJ5DUckNZI30y1K9AQjGkBAAiglLrJxND68/hRC4P8xmpSp06BaAuvn7 LyUhnNBIPNhGt2QEz2TmEzvRhmqUTjL1ezekqpdVQs2GXyUcQ2pZhPBqQXFDOk5H KoP5DZhSt3svYp/k7It/O4Rb2Y4ME2OiYoEyVDKefo3GUNWK7maKQ1f0jcM+cI3/ a7VkkHRJQFhzek7/xRXqrlYgrqZlHVYWRBFv9rFI/za9t+HmXvxqBd0km4PvsjYD hvdPXnZtosADSZ2lZwFnlFkjtgUP0kud6+EXffe6kNz4ANppnxoaeDXMQJhknZYc 7I4fSHJE0vKMmuR2cgd1YiWSvVPSSdPSp8WV0tTODqlIfC+/cW5xJJvwJjOqv6eb ioJ9GbJNl/G6ZpvwueAZbCALH4boGL7oHhb7SjetFi1Vh6hsyC/BSKuEUsXhSFb3 0ZGcwZwmk9HZyAjz5JSH7reOq+csZZovEuYTls2rm1MORHPexjSQD8IFV7oujBjV B98QHXzHJd9hNtay3Uy39fErQbFAiOz+AcndeQWDTQSLcHZb+MQnKiQZmvmbCG5Q WCFUlc4C8H5xj6MVRY0DRoqxeEv7sFTNvtDrAroTooU0eTEKzc3JQqjRGNrvCJv3 Dqge0GzCQ9y392N4x4wOVtBw0DvcMFwTXXslCX2eFmK+6k5aUX6X/V8b4Wo9PUqm msz5LzlR1nE= =2Gqs -----END PGP SIGNATURE-----