VULNERABILITY INTELLIGENCE

CVE-2017-14319

CVSS score8.8 HIGH
EPSS probability0.41%
CISA KEVNot currently listed
Published2017-09-12
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.

Primary references