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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2583 Security updates for the Linux Kernel 30 July 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: SUSE Operating System: SUSE Impact/Access: Root Compromise -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-33909 CVE-2021-22555 CVE-2020-36385 Reference: ESB-2021.2562 ESB-2021.2555 ESB-2021.2461 ESB-2021.2453 Original Bulletin: https://www.suse.com/support/update/announcement/2021/suse-su-20212560-1 https://www.suse.com/support/update/announcement/2021/suse-su-20212559-1 Comment: This bulletin contains two (2) SUSE security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for the Linux Kernel (Live Patch 22 for SLE 15 SP1) ______________________________________________________________________________ Announcement ID: SUSE-SU-2021:2560-1 Rating: important References: #1187052 #1188117 #1188257 Cross-References: CVE-2020-36385 CVE-2021-22555 CVE-2021-33909 Affected Products: SUSE Linux Enterprise Module for Live Patching 15-SP1 ______________________________________________________________________________ An update that fixes three vulnerabilities is now available. Description: This update for the Linux Kernel 4.12.14-197_83 fixes several issues. The following security issues were fixed: o CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (bsc#1188062) o CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/ x_tables.c that could allow local provilege escalation. (bsc#1188116) o CVE-2020-36385: Fixed a use-after-free vulnerability reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called. (bnc#1187050) 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-SP1: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2021-2560=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-2561=1 Package List: o SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64): kernel-livepatch-4_12_14-197_56-default-12-2.2 kernel-livepatch-4_12_14-197_83-default-8-2.2 References: o https://www.suse.com/security/cve/CVE-2020-36385.html o https://www.suse.com/security/cve/CVE-2021-22555.html o https://www.suse.com/security/cve/CVE-2021-33909.html o https://bugzilla.suse.com/1187052 o https://bugzilla.suse.com/1188117 o https://bugzilla.suse.com/1188257 - -------------------------------------------------------------------------------- SUSE Security Update: Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP3) ______________________________________________________________________________ Announcement ID: SUSE-SU-2021:2559-1 Rating: important References: #1188117 #1188257 Cross-References: CVE-2021-22555 CVE-2021-33909 Affected Products: SUSE Linux Enterprise Module for Live Patching 15-SP3 ______________________________________________________________________________ Patch 2 for SLE 15 SP3) An update that fixes two vulnerabilities is now available. Description: This update for the Linux Kernel 5.3.18-59_10 fixes several issues. The following security issues were fixed: o CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (bsc#1188062) o CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/ x_tables.c that could allow local provilege escalation. (bsc#1188116) 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-SP3: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-2559=1 Package List: o SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x x86_64): kernel-livepatch-5_3_18-59_10-default-2-2.1 kernel-livepatch-5_3_18-59_10-default-debuginfo-2-2.1 kernel-livepatch-SLE15-SP3_Update_2-debugsource-2-2.1 References: o https://www.suse.com/security/cve/CVE-2021-22555.html o https://www.suse.com/security/cve/CVE-2021-33909.html o https://bugzilla.suse.com/1188117 o https://bugzilla.suse.com/1188257 - --------------------------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 iQIVAwUBYQOOdeNLKJtyKPYoAQgfNhAAqojAyuuN6PtlTMy7pwFsJ6fpShYi37H/ EpniiJsffMR7mLnE26zniFAHWcOu2pXwEF8YtuaTKEUeJJFbv7xDQhTm1VMKlfG0 rleXW0hFnZASENXZ0SYtPLqhXu4JYTj12+8jK5ICBIRnMfg10NfiorJb0WkkiZA8 GmQoCZF/SFXtMFji3mLEA3hIAF8fyBoci67hOaOEaHsoxcCeldlryEoHiR1QGHtJ b7EEj6MawYecObWrgV+PK9/L32x2kC52OpSFidBJTNt7yac7CUNsxXwjSC5ZQ3fk TD9a/rw6MFx368X0EN9dZ1kCea3mU7h7JTziK9Lmhlr0QheGuJIY49W2fbWidVIZ fNXuyKLYTrepEvWu9fK2F4I3uVeoPGXEAJrAdVcgVMH0+dzpRX0lvzL18lqzdGrd Y/J4yJj7NEk3s4vbKwFDyz7ZHxjVk/uYLe3enXx4WS9X4pZjSACeBv/UzXGvPoRB oTUqctwaziTsPPFpxBMm8t/Ct1ZYOJpYfyMsT+8VuUFeR0B/Tp+1gzQt6wc5m/51 Eb2QID988R1MO438SnqxwJYPRQG+1u3SL5vEKlQ+4itdvb7TGH4TSZC/lIumW3Sn BuotixeF5w6qDktMnA454DyDn19zreUBsX8NhBamEkTT2Z0LuuekyTu+JsLSdhYA EcpKzDNa8uw= =XDLh -----END PGP SIGNATURE-----