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CVE-2022-39344

Azure RTOS USBX vulnerable to buffer overflow

Published: Nov 4, 2022Updated: Nov 21, 2024 Sources: CVE List NVDCWE-120
9.8CRITICAL
NVD MITRE
EPSS Score
1.9%
Top 22.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Azure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack, that is fully integrated with Azure RTOS ThreadX. Prior to version 6.1.12, the USB DFU UPLOAD functionality may be utilized to introduce a buffer overflow resulting in overwrite of memory contents. In particular cases this may allow an attacker to bypass security features or execute arbitrary code. The implementation of `ux_device_class_dfu_control_request` function prevents buffer overflow during handling of DFU UPLOAD command when current state is `UX_SYSTEM_DFU_STATE_DFU_IDLE`. This issue has been patched, please upgrade to version 6.1.12. As a workaround, add the `UPLOAD_LENGTH` check in all possible states.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-120

Affected Products

azure rtos usbxmicrosoft
On-prem
Operating Systems / windows
usbxazure-rtos
Embedded
Operating Systems / rtos-embedded-os
microsoftcommercialUSOperating Systems
azure-rtoscommercialOperating Systemsaka usbx, netxduo, filex

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/azure-rtos/usbx/security/advisories/GHSA-m9p8-xrp7-vvqp
github.com

Timeline

Published
Nov 4, 2022
Last Updated
Nov 21, 2024

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