Security update for the Linux Kernel (Live Patch 44 for SLE 12 SP3) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2022:1641-1 Final 1 1 2022-05-11T09:35:39Z current 2022-05-11T09:35:39Z 2022-05-11T09:35:39Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel (Live Patch 44 for SLE 12 SP3) This update for the Linux Kernel 4.4.180-94_161 fixes several issues. The following security issues were fixed: - CVE-2022-1011: A use-after-free flaw was found in the FUSE filesystem in the way a user triggers write(). This flaw allowed a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. (bsc#1197344) - CVE-2021-39713: Fixed a race condition in the network scheduling subsystem which could lead to a use-after-free. (bsc#1197211) - CVE-2021-28688: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11 (bsc#1182294) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2022-1641,SUSE-SLE-SAP-12-SP3-2022-1641,SUSE-SLE-SERVER-12-SP3-2022-1641 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2022/suse-su-20221641-1/ Link for SUSE-SU-2022:1641-1 https://lists.suse.com/pipermail/sle-security-updates/2022-May/010989.html E-Mail link for SUSE-SU-2022:1641-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1182294 SUSE Bug 1182294 https://bugzilla.suse.com/1197211 SUSE Bug 1197211 https://bugzilla.suse.com/1197344 SUSE Bug 1197344 https://www.suse.com/security/cve/CVE-2021-28688/ SUSE CVE CVE-2021-28688 page https://www.suse.com/security/cve/CVE-2021-39713/ SUSE CVE CVE-2021-39713 page https://www.suse.com/security/cve/CVE-2022-1011/ SUSE CVE CVE-2022-1011 page SUSE Linux Enterprise Server 12 SP3-LTSS SUSE Linux Enterprise Server for SAP Applications 12 SP3 kgraft-patch-4_4_180-94_161-default-2-2.1 kgraft-patch-4_4_180-94_161-default-2-2.1 as a component of SUSE Linux Enterprise Server 12 SP3-LTSS kgraft-patch-4_4_180-94_161-default-2-2.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11. CVE-2021-28688 SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_161-default-2-2.1 SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_161-default-2-2.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20221641-1/ https://www.suse.com/security/cve/CVE-2021-28688.html CVE-2021-28688 https://bugzilla.suse.com/1183646 SUSE Bug 1183646 Product: AndroidVersions: Android kernelAndroid ID: A-173788806References: Upstream kernel CVE-2021-39713 SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_161-default-2-2.1 SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_161-default-2-2.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20221641-1/ https://www.suse.com/security/cve/CVE-2021-39713.html CVE-2021-39713 https://bugzilla.suse.com/1196973 SUSE Bug 1196973 https://bugzilla.suse.com/1197211 SUSE Bug 1197211 https://bugzilla.suse.com/1201790 SUSE Bug 1201790 A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. CVE-2022-1011 SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_161-default-2-2.1 SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_161-default-2-2.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20221641-1/ https://www.suse.com/security/cve/CVE-2022-1011.html CVE-2022-1011 https://bugzilla.suse.com/1197343 SUSE Bug 1197343 https://bugzilla.suse.com/1197344 SUSE Bug 1197344 https://bugzilla.suse.com/1198687 SUSE Bug 1198687 https://bugzilla.suse.com/1204132 SUSE Bug 1204132 https://bugzilla.suse.com/1212322 SUSE Bug 1212322