Access Restriction Bypass Affecting xen package, versions <4.8.0~rc3-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-DEBIAN11-XEN-526570
  • published3 Sept 2015
  • disclosed3 Sept 2015

Introduced: 3 Sep 2015

CVE-2015-6654  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:11 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:11 relevant fixed versions and status.

The xenmem_add_to_physmap_one function in arch/arm/mm.c in Xen 4.5.x, 4.4.x, and earlier does not limit the number of printk console messages when reporting a failure to retrieve a reference on a foreign page, which allows remote domains to cause a denial of service by leveraging permissions to map the memory of a foreign guest.

CVSS Scores

version 3.1