CWE Code: 119
Vulnerability Type: privilege_escalation
CVSS Score: 6.9
CWE Name:  Improper Restriction of Operations within the Bounds of a Memory Buffer
Summary: an issue was discovered in xen through 4.9.x allowing guest os users to cause a denial of service (host os crash) or gain host os privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.
Access Authentication: NONE
Access Complexity: MEDIUM
Access Vector: LOCAL
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2017-12-12
Last Modified Date: 2018-10-19