CVE-2022-29246CWE-120

Potential buffer overflow in function DFU upload in Azure RTOS USBX

Critical · published May 24, 2022

CVSS v3.1
9.8
EPSS
2%
Percentile
84.0
In the wild
Unconfirmed
What it is

🔥 A crafty buffer overflow in Azure RTOS USBX could let attackers rewrite memory and execute arbitrary code, all thanks to a sneaky DFU UPLOAD mishap! Think of a warehouse that receives way more boxes than it can hold; if packed too tightly, those boxes spill over and can cause a huge mess! This vulnerability allows attackers to overflow memory buffers, potentially compromising your system just like that warehouse disaster. An attacker could exploit this vulnerability to bypass security features, causing absolute chaos by executing malicious code on your platform. We're talking about a serious compromise that could lead to unauthorized access or complete control—definitely not a scenario you want in your tech toolbelt!

Put simply

Think of a warehouse that receives way more boxes than it can hold; if packed too tightly, those boxes spill over and can cause a huge mess! This vulnerability allows attackers to overflow memory buffers, potentially compromising your system just like that warehouse disaster. The `ux_device_class_dfu_control_request` function in Azure RTOS USBX doesn't adequately check buffer sizes when handling the DFU UPLOAD command, allowing for a buffer overflow if a control transfer request exceeds the buffer limit.

What to do

An attacker could exploit this vulnerability to bypass security features, causing absolute chaos by executing malicious code on your platform. We're talking about a serious compromise that could lead to unauthorized access or complete control—definitely not a scenario you want in your tech toolbelt! Upgrade your Azure RTOS USBX to version 6.1.11 immediately! If you can't update right now, ensure that the request and buffer sizes are aligned to respect boundaries and prevent overflows. You've got this! Follow these steps to fortify your defenses and keep your system safe from harm. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02419 · 84.0th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2022-05-24T15:00Z
EPSS history
Timeline
  • 24 MAY 15:00Z
    Potential buffer overflow in function DFU upload in Azure RTOS USBX
    cvelistv5