Overview
- Description
- When multiple devices share resources and one of them is to be passed through to a guest, security of the entire system and of respective guests individually cannot really be guaranteed without knowing internals of any of the involved guests. Therefore such a configuration cannot really be security-supported, yet making that explicit was so far missing. Resources the sharing of which is known to be problematic include, but are not limited to - - PCI Base Address Registers (BARs) of multiple devices mapping to the same page (4k on x86), - - INTx lines.
- Source
- security@xen.org
- NVD status
- Awaiting Analysis
Risk scores
CVSS 3.1
- Type
- Secondary
- Base score
- 7.5
- Impact score
- 6
- Exploitability score
- 0.8
- Vector string
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- Severity
- HIGH
Weaknesses
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
- CWE-400
Social media
- Hype score
- Not currently trending