CVE-2024-31145
Sept. 26, 2024, 1:32 p.m.
Tags
CVSS Score
Product(s) Impacted
Xen Hypervisor
Description
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.
Weaknesses
CWE-400
Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CWE ID: 400Date
Published: Sept. 25, 2024, 11:15 a.m.
Last Modified: Sept. 26, 2024, 1:32 p.m.
Status : Awaiting Analysis
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
security@xen.org
CVSS Data
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Base Score
Exploitability Score
Impact Score
Base Severity
HIGHCVSS Vector String
The CVSS vector string provides an in-depth view of the vulnerability metrics.
View Vector StringCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H