Incorrect Calculation Affecting xen package, versions <4.7.1-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-ALPINE316-XEN-2845190
  • published21 Jul 2020
  • disclosed22 Feb 2017

Introduced: 22 Feb 2017

CVE-2016-9377  (opens in a new tab)
CWE-682  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 xen to version 4.7.1-r1 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 Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service (guest crash) by leveraging IDT entry miscalculation.