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CVE-2021-28693

UNKNOWN
Published 2021-06-30T10:32:26
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No CVSS data available

Description

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Xen

xen

Affected Versions:

4.15.x
Xen

xen

Affected Versions:

unspecified 4.13.x next of 4.14.x
Xen

xen

Affected Versions:

xen-unstable
Xen

xen

Affected Versions:

4.12.x

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-jpfw-vm34-2p3p

Advisory Details

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 Scoring

CVSS Score

5.0

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-28693
WEB https://security.gentoo.org/glsa/202107-30
WEB https://xenbits.xenproject.org/xsa/advisory-372.txt

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://xenbits.xenproject.org/xsa/advisory-372.txt
https://security.gentoo.org/glsa/202107-30
Published: 2021-06-30T10:32:26
Last Modified: 2024-08-03T21:47:33.196Z
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