Information Exposure Affecting xen package, versions [,4.17.0-rc3)


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.23% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-XEN-3100266
  • published4 Nov 2022
  • disclosed4 Nov 2022
  • creditAndrew Cooper

Introduced: 4 Nov 2022

CVE-2022-42327  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade xen to version 4.17.0-rc3 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure by exposing the global shared xAPIC page to unintended guests.

NOTE: Only x86 HVM or PVH guests running on Intel systems are vulnerable, and only when using the "virtualize APIC accesses" feature.

References

CVSS Base Scores

version 3.1