CVE-2016-4480

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…

published May 18, 2016

CVSS
—
EPSS
1%
Percentile
44.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00542 · 44.5th percentile
Published
2016-05-18T14:00Z
EPSS history
Timeline
  • 18 MAY 14:00Z
    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…
    cvelistv5