NULL Pointer Dereference Affecting xen package, versions [4.8.0,4.10.1)


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (28th percentile)

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  • Snyk IDSNYK-UNMANAGED-XEN-2383994
  • published26 Jan 2022
  • disclosed27 Feb 2018
  • creditUnknown

Introduced: 27 Feb 2018

CVE-2018-7542  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade xen to version 4.10.1 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.

References

CVSS Scores

version 3.1