Improper Input Validation Affecting xen package, versions <4.1.3-4


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-DEBIAN11-XEN-519637
  • published24 Nov 2012
  • disclosed24 Nov 2012

Introduced: 24 Nov 2012

CVE-2012-4538  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:11 xen to version 4.1.3-4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors.

CVSS Scores

version 3.1