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Information Exposure Affecting xen package, versions <4.13.0-r3

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    EPSS 0.05% (17th percentile)
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NVD
5.5 medium
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SUSE
5.5 medium

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  • Snyk ID SNYK-ALPINE314-XEN-1308479
  • published 21 Jul 2020
  • disclosed 14 Apr 2020
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Introduced: 14 Apr 2020

CVE-2020-11740 Open this link in a new tab
CVE-2020-11741 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade Alpine:3.14 xen to version 4.13.0-r3 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 Alpine. See How to fix? for Alpine:3.14 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.

References