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Improper Access Control Affecting xen package, versions <4.8.0~rc3-1

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.07% (62nd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-XEN-365832
  • published14 Apr 2016
  • disclosed14 Apr 2016
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Introduced: 14 Apr 2016

CVE-2015-8550  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade Debian:unstable xen to version 4.8.0~rc3-1 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:unstable relevant fixed versions and status.

Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend and backend, aka a double fetch vulnerability.