Improper Privilege Management Affecting xen package, versions <4.14.0+80-gd101b417b7-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-DEBIAN11-XEN-1021601
  • published23 Oct 2020
  • disclosed22 Oct 2020

Introduced: 22 Oct 2020

CVE-2020-27671  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade Debian:11 xen to version 4.14.0+80-gd101b417b7-1 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.

An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled.

CVSS Scores

version 3.1