Improper Input Validation Affecting xen package, versions [,4.11.2)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-UNMANAGED-XEN-2383809
  • published26 Jan 2022
  • disclosed8 Dec 2018
  • creditUnknown

Introduced: 8 Dec 2018

CVE-2018-19967  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade xen to version 4.11.2 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.

References

CVSS Scores

version 3.1