Cleansing 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-2383925
  • published26 Jan 2022
  • disclosed8 Dec 2018
  • creditUnknown

Introduced: 8 Dec 2018

CVE-2018-19965  (opens in a new tab)
CWE-171  (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 Cleansing. 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.

References

CVSS Scores

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