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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.6395 Security update for the Linux Kernel (Live Patch 48 for SLE 12 SP5) 2 November 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel (Live Patch 48 for SLE 12 SP5) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2023-4623 CVE-2023-1829 CVE-2023-1281 Original Bulletin: https://www.suse.com/support/update/announcement/2023/suse-su-20234273-1 Comment: CVSS (Max): 7.8 CVE-2023-4623 (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 48 for SLE 12 SP5) Announcement ID: SUSE-SU-2023:4273-1 Rating: important o bsc#1209683 References: o bsc#1210619 o bsc#1215440 o CVE-2023-1281 Cross-References: o CVE-2023-1829 o CVE-2023-4623 o CVE-2023-1281 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2023-1281 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2023-1829 ( 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-2023-1829 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2023-4623 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2023-4623 ( 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 three vulnerabilities can now be installed. Description: This update for the Linux Kernel 4.12.14-122_176 fixes several issues. The following security issues were fixed: o CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc# 1215440). o CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619). o CVE-2023-1281: Fixed use after free that could lead to privilege escalation in tcindex (bsc#1209683). 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 Enterprise Live Patching 12-SP5 zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2023-4273=1 Package List: o SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64) kgraft-patch-4_12_14-122_176-default-2-2.2 References: o https://www.suse.com/security/cve/CVE-2023-1281.html o https://www.suse.com/security/cve/CVE-2023-1829.html o https://www.suse.com/security/cve/CVE-2023-4623.html o https://bugzilla.suse.com/show_bug.cgiid=1209683 o https://bugzilla.suse.com/show_bug.cgiid=1210619 o https://bugzilla.suse.com/show_bug.cgiid=1215440 - --------------------------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/ iQIVAwUBZUMaRckNZI30y1K9AQhMrQ//Z3YrVDIVJYGsw3Su9oTv9F422fG7n5xN s42c+q2TkXK9pKCFZy7PmSZUNP0J9kZwiF8JADKuKzHoWXGI0fZApLc/hDKz7lzQ MRdi5acAd3uLDgRv+UClLcRdTrWd7z74BqOifD5D+CjQubnp3C9NNH4G+9G1OmEs lS3+toeFKKMRl+tMutskxuPKuEr20arAykdGRmYkaT4w6midExGyZczxDuxhiWnQ MdNWvtZe6Vt8cE3sqYogjy0Ed6+LkT8VVnlU7DNLpsiri1G3yHlb67+TxTCS2qxO ZJYUMC+G2TfUftXZ80KZcB63ShMOZUrrhyf/ClEuudkhAXdAOVYbH39epARiKqse uM09SP2mVmP/er2WMglFU7WXTkAb95UcmAp8A0vA+geqfs+A1TE1qv1dUAus+C4U 32043CVkPAgAzfkZLW15rO0kEzfEs7g3Yl8Pk+IOt7CZ1yCzUw8WQSLXqJ8fHif9 gREJtJV7aU0jyLGdbT4XyWqqvK/yqj+2wntiD8D2IsOPuuzdk6Y0SqddHY2/GI2B aTMwcKejb8cMgPvgFOV9B9A2TxnvPZpfBt85iYlsdrEQj1X2tTSaSKJjQSY4OIJc PrH90mFSEB8MR2airoOktVsakMRFaK1VYkDQ/SAGWEigu7QUlHfo4tzB0qKsfCug ois8SdGhqBk= =AFcF -----END PGP SIGNATURE-----