CentOS Linux: CVE-2018-10901: Important: kernel security and bug fix update (CESA-2018:2390)
7
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
07/26/2018
03/19/2019
08/16/2018
05/25/2023
Description
A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.
Solution(s)
- centos-upgrade-kernel
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