CWE Code: 200
Vulnerability Type: privilege_escalation
CVSS Score: 9.0
CWE Name:  Information Exposure
Summary: an issue was discovered in xen through 4.9.x. grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. other portions of code, however, did not match up with that assumption. when such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. a malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a denial of service. privilege escalation and information leaks cannot be ruled out.
Access Authentication: SINGLE
Access Complexity: LOW
Access Vector: NETWORK
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2017-10-30
Last Modified Date: 2019-10-03