Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2018-10901: Important: kernel security and bug fix update (Multiple Advisories)

Back to Search

Red Hat: CVE-2018-10901: Important: kernel security and bug fix update (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
07/26/2018
Created
03/19/2019
Added
08/15/2018
Modified
03/03/2021

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)

  • redhat-upgrade-kernel

References

  • 104905
  • CVE-2018-10901
  • RHSA-2018:2390
  • RHSA-2018:2391
  • RHSA-2018:2392
  • RHSA-2018:2393
  • RHSA-2018:2394
View more

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;