CWE Code: 264
Vulnerability Type: privilege_escalation
CVSS Score: 7.2
CWE Name:  Permissions Privileges and Access Controls
Summary: the guest_walk_tables function in arch/x86/mm/guest_walk.c in xen 4.6.x and earlier does not properly handle the page size (ps) page table entry bit at the l4 and l3 page table levels, which might allow local guest os users to gain privileges via a crafted mapping of memory.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: LOCAL
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2016-05-18
Last Modified Date: 2016-12-01