Access Restriction Bypass Affecting xen package, versions <4.4.0-1


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-532674
  • published3 Jun 2015
  • disclosed3 Jun 2015

Introduced: 3 Jun 2015

CVE-2015-4103  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:11 xen to version 4.4.0-1 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.

Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.

CVSS Scores

version 3.1