Access Restriction Bypass Affecting xen package, versions [4.4.0,4.5.1]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-UNMANAGED-XEN-2383856
  • published26 Jan 2022
  • disclosed3 Sept 2015
  • creditUnknown

Introduced: 3 Sep 2015

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

How to fix?

There is no fixed version for xen.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. 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.

References

CVSS Scores

version 3.1