CVE Vulnerabilities

CVE-2021-28693

Published: Jun 30, 2021 | Modified: Sep 21, 2021
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

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.

Affected Software

Name Vendor Start Version End Version
Xen Xen 4.12.0 4.15.0
Xen Xen 4.15.0 4.15.0

References