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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2291 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP3) 1 July 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: linux kernel Publisher: SUSE Operating System: SUSE Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Access Privileged Data -- Existing Account Create Arbitrary Files -- Existing Account Denial of Service -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-33034 CVE-2021-32399 CVE-2021-29154 CVE-2021-28950 CVE-2021-28660 CVE-2021-3490 CVE-2021-3489 CVE-2020-36322 Reference: ESB-2021.2184 ESB-2021.2136 ESB-2021.1962 ESB-2021.1819 ESB-2021.1669 ESB-2021.1376 ESB-2021.1307 Original Bulletin: https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1 - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for the Linux Kernel (Live ______________________________________________________________________________ Announcement ID: SUSE-SU-2021:2198-1 Rating: important References: #1183658 #1184710 #1184952 #1185796 #1185847 #1185856 #1185899 #1186285 Cross-References: CVE-2020-36322 CVE-2021-28660 CVE-2021-29154 CVE-2021-32399 CVE-2021-33034 CVE-2021-3489 CVE-2021-3490 Affected Products: SUSE Linux Enterprise Module for Live Patching 15-SP3 ______________________________________________________________________________ Patch 0 for SLE 15 SP3) An update that solves 7 vulnerabilities and has one errata is now available. Description: This update for the Linux Kernel 5.3.18-57 fixes several issues. The following issues were fixed: o CVE-2021-3489: Fixed an issue where the eBPF RINGBUF bpf_ringbuf_reserve did not check that the allocated size was smaller than the ringbuf size (bsc#1185640). o CVE-2021-3490: Fixed an issue where the eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) did not update the 32-bit bounds (bsc# 1185641). o CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111). o CVE-2021-32399: Fixed a race condition when removing the HCI controller (bsc#1184611). o CVE-2020-36322: Fixed an issue was discovered in FUSE filesystem implementation which could have caused a system crash (bsc#1184211). o CVE-2021-29154: Fixed incorrect computation of branch displacements, allowing arbitrary code execution (bsc#1184391). o CVE-2021-28660: Fixed an out of bounds write in rtw_wx_set_scan (bsc# 1183593). o Fixed a data loss/data corruption that occurs if there is a write error on an md/raid array (bsc#1185847). 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-SP3-2021-2198=1 Package List: o SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x x86_64): kernel-livepatch-5_3_18-57-default-2-3.1 kernel-livepatch-5_3_18-57-default-debuginfo-2-3.1 kernel-livepatch-SLE15-SP3_Update_0-debugsource-2-3.1 References: o https://www.suse.com/security/cve/CVE-2020-36322.html o https://www.suse.com/security/cve/CVE-2021-28660.html o https://www.suse.com/security/cve/CVE-2021-29154.html o https://www.suse.com/security/cve/CVE-2021-32399.html o https://www.suse.com/security/cve/CVE-2021-33034.html o https://www.suse.com/security/cve/CVE-2021-3489.html o https://www.suse.com/security/cve/CVE-2021-3490.html o https://bugzilla.suse.com/1183658 o https://bugzilla.suse.com/1184710 o https://bugzilla.suse.com/1184952 o https://bugzilla.suse.com/1185796 o https://bugzilla.suse.com/1185847 o https://bugzilla.suse.com/1185856 o https://bugzilla.suse.com/1185899 o https://bugzilla.suse.com/1186285 - --------------------------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). 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