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CVE-2024-35843 Spoofing

Routine
Remediate Within 6 Months

CVE Information

Original CVE data

Published:
Updated:

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Use device rbtree in iopf reporting path The existing I/O page fault handler currently locates the PCI device by calling pci_get_domain_bus_and_slot(). This function searches the list of all PCI devices until the desired device is found. To improve lookup efficiency, replace it with device_rbtree_find() to search the device within the probed device rbtree. The I/O page fault is initiated by the device, which does not have any synchronization mechanism with the software to ensure that the device stays in the probed device tree. Theoretically, a device could be released by the IOMMU subsystem after device_rbtree_find() and before iopf_get_dev_fault_param(), which would cause a use-after-free problem. Add a mutex to synchronize the I/O page fault reporting path and the IOMMU release device path. This lock doesn't introduce any performance overhead, as the conflict between I/O page fault reporting and device releasing is very rare.

CWE:
CVSS v2-
CVSS v3-
References
https://git.kernel.org/stable/c/3d39238991e745c5df85785604f037f35d9d1b15
https://git.kernel.org/stable/c/def054b01a867822254e1dda13d587f5c7a99e2a
Affected Vendors

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Spoofing

CVSS Scores as calculated by PRIOnengine
CVSS v24.6
AV:L/AC:L/AU:S/C:N/I:N/A:C
CVSS v37.8
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
MITRE CWE Top 25

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Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

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Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1499.004 - Endpoint Denial of Service (Application or System Exploitation)
T1203 - Exploitation for Client Execution
T1059 - Command and Scripting Interpreter

Compliance Impact

How the submited vulnerability affects compliance

PCI DSS v3.2.1-6.5.2 - Buffer Overflows

Web Application Security Frameworks

Applicable if the issue likely affects a web application

WASC-19 - SQL Injection