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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0525 Security update for the Linux Kernel (Live Patch 9 for SLE 15 SP2) 12 February 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel Publisher: SUSE Operating System: SUSE Impact/Access: Increased Privileges -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Unauthorised Access -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-29569 CVE-2020-29373 CVE-2020-29368 Reference: ESB-2021.0456 ESB-2021.0166 ESB-2020.4417 Original Bulletin: https://www.suse.com/support/update/announcement/2021/suse-su-20210359-1 - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for the Linux Kernel (Live ______________________________________________________________________________ Announcement ID: SUSE-SU-2021:0359-1 Rating: important References: #1179664 #1179779 #1180008 Cross-References: CVE-2020-29368 CVE-2020-29373 CVE-2020-29569 Affected Products: SUSE Linux Enterprise Module for Live Patching 15-SP2 ______________________________________________________________________________ Patch 9 for SLE 15 SP2) An update that fixes three vulnerabilities is now available. Description: This update for the Linux Kernel 5.3.18-24_46 fixes several issues. The following security issues were fixed: o CVE-2020-29373: Fixed an issue where kernel unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations (bsc#1179779). o CVE-2020-29569: Fixed a use after free due to a logic error (bsc#1180008). o CVE-2020-29368: Fixed an issue in copy-on-write implementation which could grant unintended write access because of a race condition in a THP mapcount check (bsc#1179664). Patch Instructions: To install this SUSE Security 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 Module for Live Patching 15-SP2: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-359=1 Package List: o SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x x86_64): kernel-livepatch-5_3_18-24_46-default-2-2.1 kernel-livepatch-5_3_18-24_46-default-debuginfo-2-2.1 kernel-livepatch-SLE15-SP2_Update_9-debugsource-2-2.1 References: o https://www.suse.com/security/cve/CVE-2020-29368.html o https://www.suse.com/security/cve/CVE-2020-29373.html o https://www.suse.com/security/cve/CVE-2020-29569.html o https://bugzilla.suse.com/1179664 o https://bugzilla.suse.com/1179779 o https://bugzilla.suse.com/1180008 - --------------------------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: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYCX8IuNLKJtyKPYoAQgWtg//Sx+l4wu6m6HrEXH/x3AQkJxbTxfdVZXs 2PejwfnKkAQTFMcqmQeNP/jbC5bMBmxlzOM1mSFPNhhY/NH8tzuRyCn2EOsTcDDv ieN0LioKu6xWgC6aumpqZVVTwk56gkQ3mTROFi2ZAyKfZ1BCBgVZi9YcxjbbEie+ UkKsL6w4x+kJVJihWzXTZfjDXibnGN00PkjDFWQCM5EuSDTLwiSNggg4w+P48EQU JtC6B9LHAoO9uYWHR0ZkXQ46IK4IRHjLvvruUdl49sCY5JoLqNmz4r6nRKPKNRB5 F1RVm+VLcdVY5Qz7YvV8A+DvqTQCC8fr5o9lZeRaDwrGTqSJ0VdPLicFAdkXueM0 Bku+FqaEgZg6ySaR+Jxp8FQpasCojL6OEdfqG7W7QvHF/yQVwEb/VxdRPe6SO25X GXqSrdCslMc5QUXef2VmYdanl+EYjb42/UKugZVG955xHBsXrKaVM4nxXyd9f+Ib FQFpFs8UQKvxnD/WozGowAcK2nYGOuKz1/VSy4dVwahI9fvaFVROljyDBRdOCWfF GBUv2IDG2OMbGbAzWiSEXO4dY2zhgz9+K/LggOCfb5zGlIqhRLCftXTAl04lnI71 pZS6pufqv4v2uyle05RhaB5fGgNPSEywLgPhYOi3n1QeSSwO5Vb9Vt8whWwLsGxH 7+zyYrzF38M= =p2Ql -----END PGP SIGNATURE-----