Out-of-Bounds Affecting xen package, versions [4.10.0,]


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.06% (28th percentile)

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  • Snyk IDSNYK-UNMANAGED-XEN-2384020
  • published26 Jan 2022
  • disclosed5 Jan 2018
  • creditUnknown

Introduced: 5 Jan 2018

CVE-2018-5244  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

There is no fixed version for xen.

Overview

Affected versions of this package are vulnerable to Out-of-Bounds. In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.

References

CVSS Scores

version 3.1