CVE-2017-17563
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductXen
PublishedDec 12, 2017
First seenDec 12, 2017
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xen xen | v ≤ 4.9.1 | — |
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