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 l2tpsessiondelete 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).