cbcvebase.
CVE-2018-10901
published 2018-07-26

CVE-2018-10901: 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…

high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
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.

Affected

8 ranges
VendorProductVersion rangeFixed in
debianlinux
linuxlinux_kernel< 2.6.362.6.36
redhatenterprise_linux_desktop
redhatenterprise_linux_server
redhatenterprise_linux_server_aus
redhatenterprise_linux_server_aus
redhatenterprise_linux_server_aus
redhatenterprise_linux_workstation

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH