CVE-2018-10853CWE-250

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor

High · published September 11, 2018

CVSS v3.0
7.0
EPSS
0%
Percentile
39.7
In the wild
Unconfirmed
What it is

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.

The record
Technical detail
CVSS v3.0
7.0 · HIGH
Vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00470 · 39.7th percentile
Weakness
CWE-250 · Execution with Unnecessary Privileges
Published
2018-09-11T14:00Z
EPSS history
Timeline
  • 11 SEP 14:00Z
    A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor
    cvelistv5