Information Exposure Affecting xen package, versions <4.11.4-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-XEN-565410
  • published14 Apr 2020
  • disclosed14 Apr 2020

Introduced: 14 Apr 2020

CVE-2020-11740  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Debian:unstable xen to version 4.11.4-1 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.

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (without active profiling) to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not scrubbed.

CVSS Scores

version 3.1