Resource Management Errors Affecting xen package, versions <4.6.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-DEBIAN11-XEN-515572
  • published30 Oct 2015
  • disclosed30 Oct 2015

Introduced: 30 Oct 2015

CVE-2015-7972  (opens in a new tab)
CWE-399  (opens in a new tab)

How to fix?

Upgrade Debian:11 xen to version 4.6.0-1 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.

The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure."

CVSS Scores

version 3.1