CWE Code: 264
Vulnerability Type: privilege_escalation
CVSS Score: 4.6
CWE Name:  Permissions Privileges and Access Controls
Summary: xen 4.0.x through 4.7.x mishandle x86 task switches to vm86 mode, which allows local 32-bit x86 hvm guest os users to gain privileges or cause a denial of service (guest os crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in vm86 mode.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: LOCAL
Impact (C/I/A): PARTIAL/PARTIAL/PARTIAL
Published Date: 2017-01-23
Last Modified Date: 2017-07-01