VDB
DEBIAN-CVE-2023-46839
DEBIAN-CVE-2023-46839
PUBLISHED
CVSS 5.300000190734863 MEDIUM
PCI devices can make use of a functionality called phantom functions, that when enabled allows the device to generate requests using the IDs of functions that are otherwise unpopulated. This allows a device to extend the number of outstanding requests. Such phantom functions need an IOMMU context setup, but failure to setup the context is not fatal when the device is assigned. Not failing device assignment when such failure happens can lead to the primary device being assigned to a guest, while some of the phantom functions are assigned to a different domain.
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | xen | *, 4.17.2+76-ge1f9cb16e2-1, 4.17.2+76-ge1f9cb16e2-1~deb12u1 |
| Debian:14 | xen | 0, 0, 0 |
| Debian:12 | xen | 4.17.1+2-gb773c48e36-1, 4.17.2+55-g0b56bed864-1, 4.17.2+76-ge1f9cb16e2-1 |
| Debian:13 | xen | 0, 0, 0 |
Timeline
- Mar 20, 2024 CVE Published
- Apr 28, 2026 CVE Updated