VDB
ALPINE-CVE-2021-28693
ALPINE-CVE-2021-28693
PUBLISHED
CVSS 5.5 MEDIUM
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.
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.18 | xen | 4.2.1-r10, 4.2.2-r9, 4.2.1-r3 |
| Alpine:v3.23 | xen | 4.6.0-r5, 4.12.0, 4.9.1-r3 |
| Alpine:v3.12 | xen | 4.3.2-r2, 4.1.2-r4, 4.0.1-r0 |
| Alpine:v3.22 | xen | 4.9.0-r7, 0, 4.0.1-r1 |
| Alpine:v3.21 | xen | 4.1.2-r3, 4.1.2-r7, 4.1.2-r9 |
| Alpine:v3.24 | xen | 4.12.0 |
| Alpine:v3.14 | xen | 4.4.1-r6, 4.3.1-r0, 4.3.0-r8 |
| Alpine:v3.17 | xen | 4.9.0-r6, 4.7.0-r4, 4.1.0-r2 |
| Alpine:v3.19 | xen | 4.4.1-r3, 4.1.2-r6, 4.1.2-r7 |
| Alpine:v3.20 | xen | 4.6.3-r0, 4.12.0, 4.9.1-r3 |
| Alpine:v3.15 | xen | 4.7.1-r1, 4.2.0-r3, 4.2.0-r0 |
| Alpine:v3.13 | xen | 4.12.0-r0, 4.12.0, 4.9.1-r3 |
| Alpine:v3.11 | xen | 4.10.1-r2, 4.12.0, 4.9.1-r3 |
| Alpine:v3.16 | xen | 4.2.1-r11, 4.2.1-r2, 4.2.1-r3 |
Timeline
- Jun 30, 2021 CVE Published
- Apr 30, 2026 Distribution Patch
- Jul 8, 2026 CVE Updated