Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0526 Security update for the Linux Kernel (Live Patch 6 for SLE 15 SP2) 12 February 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel Publisher: SUSE Operating System: SUSE Impact/Access: Root Compromise -- Existing Account Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Existing Account Access Confidential Data -- Existing Account Unauthorised Access -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-36158 CVE-2020-29661 CVE-2020-29660 CVE-2020-29569 CVE-2020-29373 CVE-2020-29368 CVE-2020-0466 Reference: ESB-2021.0501 ESB-2021.0348 ESB-2020.4417 Original Bulletin: https://www.suse.com/support/update/announcement/2021/suse-su-20210362-1 - --------------------------BEGIN INCLUDED TEXT-------------------- _____________________________________________________________________________ Announcement ID: SUSE-SU-2021:0362-1 Rating: important References: #1179664 #1179779 #1179877 #1180008 #1180032 #1180562 Cross-References: CVE-2020-0466 CVE-2020-29368 CVE-2020-29373 CVE-2020-29569 CVE-2020-29660 CVE-2020-29661 CVE-2020-36158 Affected Products: SUSE Linux Enterprise Module for Live Patching 15-SP2 ______________________________________________________________________________ Patch 6 for SLE 15 SP2) An update that fixes 7 vulnerabilities is now available. Description: This update for the Linux Kernel 5.3.18-24_34 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-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180562). o CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180032. o CVE-2020-29569: Fixed a use after free due to a logic error (bsc#1180008). o CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bsc#1179877). o CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179877). 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-SP2-2021-360=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-361=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-362=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-363=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-364=1 Package List: o SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x x86_64): kernel-livepatch-5_3_18-24_24-default-5-2.1 kernel-livepatch-5_3_18-24_24-default-debuginfo-5-2.1 kernel-livepatch-5_3_18-24_29-default-3-2.1 kernel-livepatch-5_3_18-24_29-default-debuginfo-3-2.1 kernel-livepatch-5_3_18-24_34-default-3-2.1 kernel-livepatch-5_3_18-24_34-default-debuginfo-3-2.1 kernel-livepatch-5_3_18-24_37-default-3-2.1 kernel-livepatch-5_3_18-24_37-default-debuginfo-3-2.1 kernel-livepatch-5_3_18-24_43-default-2-2.1 kernel-livepatch-5_3_18-24_43-default-debuginfo-2-2.1 kernel-livepatch-SLE15-SP2_Update_4-debugsource-5-2.1 kernel-livepatch-SLE15-SP2_Update_5-debugsource-3-2.1 kernel-livepatch-SLE15-SP2_Update_6-debugsource-3-2.1 kernel-livepatch-SLE15-SP2_Update_7-debugsource-3-2.1 kernel-livepatch-SLE15-SP2_Update_8-debugsource-2-2.1 References: o https://www.suse.com/security/cve/CVE-2020-0466.html 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://www.suse.com/security/cve/CVE-2020-29660.html o https://www.suse.com/security/cve/CVE-2020-29661.html o https://www.suse.com/security/cve/CVE-2020-36158.html o https://bugzilla.suse.com/1179664 o https://bugzilla.suse.com/1179779 o https://bugzilla.suse.com/1179877 o https://bugzilla.suse.com/1180008 o https://bugzilla.suse.com/1180032 o https://bugzilla.suse.com/1180562 - --------------------------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 iQIVAwUBYCX99ONLKJtyKPYoAQgBuBAAp3wRyOaXJJp1cr96B0dJ99FwKBDthNt9 3ob0qnbXazPEBNSDkYtKNttPrOToJ1R3CcFnHHMI02hyrXIZuNaxGScdmZyjdEmc u0p/Wl0pWcO0cKxiBVMuEhkWl3VcWAjIQKvP9uxHVo8EzByiAxzYWj8ojXWTfcvP BHvyy0e8ccNZMZ7Vg+azMdTy6rFpAIWaUiu8m4yHK9i8CzHZw/dDxhxA2qR1yt0k RKbdKy4qb5U8bIGGRCIxFYCj9FdY5J5aRBvkOsqJQ8YXmXITxLlZ5BycQZz0XSdT ETvJPQZ1dnZosyWqmSAWqlWyVE+E/rnxUcOOhbt5xOrozLlCve2c3hX+tle4W9rk NxfQbmgSLtps4eS28Yh2uwnzhj9SQVJV/aTBj8LQn6UpPQpvtKUwn4FQxjcTaShP ONRjF3ojhYS9EYpAZzQjUQJPt9mRcHfBE0fsnlKR5TK/u8ASAuEI0iNU3+Fm2INT j6kn5asB/6cth/29RLa5xMqdZEjzSUUipHUeKLhWL893xwzGcU4CMiZPgFBLXw1F 3oHuYzy8dj0QUl6GuNtBtTvUzayyERzMUwBc8GMhIUWNn9pQkJUnJyVr1yZe5AsI 5tn+gQCycK1YMNd+QFBCUs59S3WIej5bz4YJ4jnjJwbYRhJ5v4z+KXcvchphCZ9D juNzvB+Eix0= =hjKJ -----END PGP SIGNATURE-----