vulnerability

Amazon Linux AMI: CVE-2018-10901: Security patch for kernel (ALAS-2018-1023)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
May 25, 2018
Added
Sep 7, 2018
Modified
Oct 14, 2022

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

amazon-linux-upgrade-kernel
Title
NEW

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