VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
https://support.citrix.com/article/CTX219378
http://www.securitytracker.com/id/1037518
http://www.securityfocus.com/bid/95026
http://xenbits.xen.org/xsa/advisory-203.html
Source: Mitre, NVD
Published: 2017-01-26
Updated: 2025-04-20
Base Score: 2.1
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P
Severity: Low
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity: Medium
EPSS: 0.00121