CVE-2018-19961
High
Description
An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Xen
PublishedDec 8, 2018
First seenDec 8, 2018
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xen xen | v ≤ 4.11.1 | — |
| debian debian_linux | 9.0 | — |
| citrix xenserver | 7.0, 7.1, 7.5, 7.6 | — |
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