The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references.
http://www.debian.org/security/2017/dsa-3791
http://www.openwall.com/lists/oss-security/2017/01/31/4
http://www.securityfocus.com/bid/95878
https://access.redhat.com/errata/RHSA-2017:1842
Source: MITRE
Published: 2017-02-06
Updated: 2019-10-03
Type: CWE-772
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Impact Score: 4
Exploitability Score: 2
Severity: MEDIUM