CVE-2017-15597

CRITICAL Year: 2017
CVSS v3 Score
9.1
Critical
CVSS v2 Score
9.0
Critical
Weakness Type
CWE-119
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Vulnerability Description

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.

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