vulnerability
Red Hat: CVE-2018-10901: Important: kernel security and bug fix update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Jul 26, 2018 | Aug 15, 2018 | Mar 3, 2021 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Jul 26, 2018
Added
Aug 15, 2018
Modified
Mar 3, 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
redhat-upgrade-kernel
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