SUSE-SU-2021:2026-1

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SUSE-SU-2021:2026-1

Summary: Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP3)

Details: This update for the Linux Kernel 4.4.180-94_144 fixes several issues. The following issues were fixed: - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111). - CVE-2021-28688: Fixed an issue introduced by XSA-365, leaving around zombie domains after xen guest has died (bsc#1183646). - CVE-2020-0429: In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with system execution privileges needed. (bsc#1176724). - Fixed a regression with the last livepatch which caused a kernel warning during sysfs read (bsc#1186235).

References: https://www.suse.com/support/update/announcement/2021/suse-su-20212026-1/, https://bugzilla.suse.com/1176931, https://bugzilla.suse.com/1182294, https://bugzilla.suse.com/1186235, https://bugzilla.suse.com/1186285, https://www.suse.com/security/cve/CVE-2020-0429, https://www.suse.com/security/cve/CVE-2021-28688, https://www.suse.com/security/cve/CVE-2021-33034