CVE-2021-28693
Fixed in a distro release EPSS <1%
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.
Products: xen
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.11 | xen | 4.13.3-r1 |
| Alpine 3.12 | xen | 4.13.3-r1 |
| Alpine 3.13 | xen | 4.14.1-r3 |
| Alpine 3.14 | xen | 4.15.0-r1 |
| Alpine 3.15 | xen | 4.15.0-r1 |
| Alpine 3.16 | xen | 4.15.0-r1 |
| Alpine 3.17 | xen | 4.15.0-r1 |
| Alpine 3.18 | xen | 4.15.0-r1 |
| Alpine 3.19 | xen | 4.15.0-r1 |
| Alpine 3.20 | xen | 4.15.0-r1 |
| Alpine 3.21 | xen | 4.15.0-r1 |
| Alpine 3.22 | xen | 4.15.0-r1 |
| Alpine 3.23 | xen | 4.15.0-r1 |
| Alpine 3.24 | xen | 4.15.0-r1 |
| Debian 12 | xen | 4.14.2+25-gb6a8c4f72d-1 |
| Debian 13 | xen | 4.14.2+25-gb6a8c4f72d-1 |
| Debian 14 | xen | 4.14.2+25-gb6a8c4f72d-1 |
| SUSE Enterprise Storage 6 | xen | 4.12.4_12-3.52.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | xen | 4.12.4_12-3.52.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | xen | 4.12.4_12-3.52.1 |
| SUSE Linux Enterprise Micro 5.0 | xen | 4.13.3_02-3.34.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | xen | 4.13.3_02-3.34.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | xen | 4.14.2_04-3.9.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | xen | 4.13.3_02-3.34.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | xen | 4.14.2_04-3.9.1 |
| SUSE Linux Enterprise Server 12 SP5 | xen | 4.12.4_12-3.49.1 |
| SUSE Linux Enterprise Server 15 SP1-BCL | xen | 4.12.4_12-3.52.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | xen | 4.12.4_12-3.52.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | xen | 4.12.4_12-3.49.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | xen | 4.12.4_12-3.52.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | xen | 4.12.4_12-3.49.1 |
| SUSE Manager Proxy 4.0 | xen | 4.12.4_12-3.52.1 |
| SUSE Manager Retail Branch Server 4.0 | xen | 4.12.4_12-3.52.1 |
| SUSE Manager Server 4.0 | xen | 4.12.4_12-3.52.1 |
| Ubuntu 16.04 LTS | xen | no fix |
| Ubuntu 18.04 LTS | xen | no fix |
| Ubuntu 20.04 LTS | xen | no fix |
| Ubuntu 22.04 LTS | xen | no fix |
| Ubuntu 24.04 LTS | xen | no fix |
| Ubuntu 25.10 | xen | no fix |
| Ubuntu 26.04 LTS | xen | no fix |
| Ubuntu 26.10 | xen | no fix |
| openSUSE Leap 15.2 | xen | 4.13.3_02-lp152.2.27.1 |
| openSUSE Leap 15.3 | xen | 4.14.2_04-3.9.1 |