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.
Published 2021-06-30 11:15:08
Updated 2021-09-21 16:14:49
Source Xen Project
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-28693

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-28693

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.1
LOW AV:L/AC:L/Au:N/C:P/I:N/A:N
3.9
2.9
NIST
5.5
MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
1.8
3.6
NIST

References for CVE-2021-28693

Products affected by CVE-2021-28693

  • XEN » XEN
    Versions from including (>=) 4.12.0 and up to, including, (<=) 4.15.0
    cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
  • XEN » XEN » Version: 4.15.0 Update RC1
    cpe:2.3:o:xen:xen:4.15.0:rc1:*:*:*:*:*:*
This web site uses cookies for managing your session, storing preferences, website analytics and additional purposes described in our privacy policy.
By using this web site you are agreeing to CVEdetails.com terms of use!