CWE Code: 20
Vulnerability Type: privilege_escalation
CVSS Score: 6.9
CWE Name:  Improper Input Validation
Summary: the pv superpage functionality in arch/x86/mm.c in xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local pv guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (mfn) to the (1) mmuext_mark_super or (2) mmuext_unmark_super sub-op in the hypervisor_mmuext_op hypercall or (3) unknown vectors related to page table updates.
Access Authentication: NONE
Access Complexity: MEDIUM
Access Vector: LOCAL
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2016-01-22
Last Modified Date: 2018-10-30