CVE-2018-19965
Medium
Description
An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.
SeverityMedium
CVSS5.6
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 | — |
| citrix xenserver | 7.0, 7.1, 7.5, 7.6 | — |
| debian debian_linux | 9.0 | — |
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