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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.3736 Security update for the Linux Kernel (Live Patch 38 for SLE 12 SP5) 30 June 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel (Live Patch 38 for SLE 12 SP5) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2023-31436 CVE-2023-28466 CVE-2023-23455 CVE-2023-1390 Original Bulletin: https://www.suse.com/support/update/announcement/2023/suse-su-20232686-1 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 38 for SLE 12 SP5) Announcement ID: SUSE-SU-2023:2686-1 Rating: important o #1207189 o #1210452 References: o #1210779 o #1210989 o CVE-2023-1390 o CVE-2023-23455 Cross-References: o CVE-2023-28466 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 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 CVSS scores: 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 12 SP5 Affected o SUSE Linux Enterprise Live Patching 12-SP5 Products: o SUSE Linux Enterprise Server 12 SP5 o SUSE Linux Enterprise Server for SAP Applications 12 SP5 An update that solves four vulnerabilities can now be installed. Description: This update for the Linux Kernel 4.12.14-122_144 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). 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 12-SP5 zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2023-2686=1 Package List: o SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64) kgraft-patch-4_12_14-122_144-default-6-2.2 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-2023-28466.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=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/ iQIVAwUBZJ5C68kNZI30y1K9AQgNdBAAs1xqFIcKYOCQZg25YXxoTSoQg+cKEiT6 X2t8o75XV9JREP3RwSQgQA3E+Qelf+aaq+sjIwRFL3A13wiewGuuTXbuMyvvcSDH Jbe4K3tt+0rEnI2GWuu5LfwVRq8r53mKZbbr5pK8PlwiAykkSIIgTVsBR16bgXCh DxB6acmLJJwOk0c8dDWbysycynluUH99KMJ1+GBn+87TlS2mJU5lJiAL+7tEAkzc fQSj44wkrDehi+UxNvVy3i3ePPF2xQH2ZiS9Ax6uK7fQ/ljHVYUICN1tAQRu9v4T YZ7kIykW0a6/rNVEmRPF/U/eoBcQS3/nmdUjkHI1Mt3CFTh/it31VUARcYgMfndW G/KQfx2hzgEqz1OT4SymMwCK3f/ln24SM2njEpsY4w8hMcY5rFkX75+dGEBmc6kk 6XnIC3KRFdf+/OI6qJNadnhrJpCMt0MyCdRR0RfVbTgCfALhWpV3h7R8Z8Wbuvtg FKtmOFiu1SgWIuJxk0STYI46sFlsNANobuca8Qgx8ODfnWXedqxt657URfqQdv3P WJkuKP3++/ZHUlH/LvsEsD/J1ckvOpgXBuzeTjzbZPrJ90WhKafeqoiKqwtIXAIa t0d/ezJ4uIGRSvdMbBpxDH6R2YUvFm41a63TGnRsDFKd6nIC6KHHC+ueqXB/hFlk voNx2Sc9J7k= =T/Zj -----END PGP SIGNATURE-----