Information Exposure Affecting xen package, versions [4.12.0,]


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-XEN-2383984
  • published26 Jan 2022
  • disclosed30 Jun 2021
  • creditUnknown

Introduced: 30 Jun 2021

CVE-2021-28693  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

There is no fixed version for xen.

Overview

Affected versions of this package are vulnerable to Information Exposure xen/arm: Boot modules are not scrubbed The bootloader will load boot modules (e.g. kernel, initramfs...) in a temporary area before they are copied by Xen to each domain memory. To ensure sensitive data is not leaked from the modules, Xen must "scrub" them before handing the page over to the allocator. Unfortunately, it was discovered that modules will not be scrubbed on Arm.

CVSS Scores

version 3.1