ALPINE-CVE-2021-28702
Record from OSV · Published October 6, 2021
PCI devices with RMRRs not deassigned correctly Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR"). These are typically used for platform tasks such as legacy USB emulation. If such a device is passed through to a guest, then on guest shutdown the device is not properly deassigned. The IOMMU configuration for these devices which are not properly deassigned ends up pointing to a freed data structure, including the IO Pagetables. Subsequent DMA or interrupts from the device will have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| xen | Alpine:v3.18 | 4.15.1-r1 |
| xen | Alpine:v3.12 | 4.13.4-r1 |
| xen | Alpine:v3.16 | 4.15.1-r1 |
| xen | Alpine:v3.17 | 4.15.1-r1 |
| xen | Alpine:v3.21 | 4.15.1-r1 |
| xen | Alpine:v3.15 | 4.15.1-r1 |
| xen | Alpine:v3.13 | 4.14.3-r1 |
| xen | Alpine:v3.11 | 4.13.4-r1 |
| xen | Alpine:v3.23 | 4.15.1-r1 |
| xen | Alpine:v3.24 | 4.15.1-r1 |
| xen | Alpine:v3.22 | 4.15.1-r1 |
| xen | Alpine:v3.20 | 4.15.1-r1 |
2 more packages have a fixed version. See every fix in Lookup.
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.18 | xen | 4.6.0-r5, 4.2.1-r11, 4.10.0-r1 |
| Alpine:v3.12 | xen | 4.13.4-r0, 4.1.0-r2, 4.1.1-r0 |
| Alpine:v3.16 | xen | 4.9.0-r3, 4.0.1-r3, 4.0.1-r2 |
| Alpine:v3.17 | xen | 4.0.1-r0, 4.0.1-r1, 4.0.1-r2 |
| Alpine:v3.21 | xen | 4.15.1-r0, 4.15.0-r2, 4.9.1-r0 |
| Alpine:v3.15 | xen | 4.14.0-r0, 4.13.0, 4.2.1-r3 |
| Alpine:v3.13 | xen | 4.0.1-r1, 4.0.1-r2, 4.0.1-r3 |
| Alpine:v3.11 | xen | 4.3.0-r2, 4.0.1-r0, 4.0.1-r1 |
| Alpine:v3.23 | xen | 4.15.0-r5, 4.2.1-r8, 4.9.0-r4 |
| Alpine:v3.24 | xen | 4.13.0 |
| Alpine:v3.22 | xen | 4.3.0-r0, 4.1.2-r5, 4.9.0-r8 |
| Alpine:v3.20 | xen | 4.7.0-r5, 4.13.0, 4.4.2-r1 |
| Alpine:v3.14 | xen | 4.9.0-r1, 4.1.2-r8, 4.12.0-r3 |
| Alpine:v3.19 | xen | 4.1.2-r10, 4.15.0-r4, 4.10.1-r1 |
Timeline
- Oct 6, 2021 CVE Published
- Jul 8, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln ALPINE-CVE-2021-28702
vulnetix vdb fixes ALPINE-CVE-2021-28702Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/ALPINE-CVE-2021-28702/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart