Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation.
Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. In the logic establishing these mappings, error handling was flawed, resulting in such mappings to potentially remain in place when they should have been removed again. Respective guests would then gain access to memory regions which they aren't supposed to have access to.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | debian-upgrade-xen | Dec 30, 2024 | Sep 25, 2024 | |
| Dell Powerstore Dsa2024462 | dell-powerstoreos-upgrade-latest | Oct 23, 2025 | Nov 20, 2024 | |
| Dell Powerstore Dsa2024497 | dell-powerstoreos-upgrade-latest | Oct 23, 2025 | Dec 19, 2024 | |
| Dell Powerstore Dsa2025050 | dell-powerstoreos-upgrade-latest | Oct 23, 2025 | Jan 28, 2025 | |
| Suse | — | suse-upgrade-xensuse-upgrade-xen-develsuse-upgrade-xen-libssuse-upgrade-xen-toolssuse-upgrade-xen-tools-domususe-upgrade-xen-tools-xendomains-wait-disk | Aug 22, 2024 | Aug 21, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub