CVE-2021-27411: Micrium OS Integer Overflow or Wraparound
First published: Tue May 03 2022(Updated: )
Micrium OS Versions 5.10.1 and prior are vulnerable to integer wrap-around in functions Mem_DynPoolCreate, Mem_DynPoolCreateHW and Mem_PoolCreate. This unverified memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as very small blocks of memory being allocated instead of very large ones.
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Micrium uC/OS | <=5.10.1 | |
| Amazon FreeRTOS | ||
| Apache NuttX | ||
| ARM CMSIS-RTOS2 | ||
| Arm Mbed OS | ||
| Arm Mbed ualloc | ||
| QNX | ||
| BlackBerry QNX OS for Safety | ||
| BlackBerry QNX OS for Medical | ||
| QNX | ||
| Mongoose OS | ||
| eCosCentric eCosPro RTOS | ||
| Google Cloud IoT Device SDK | ||
| MediaTek LinkIt SDK | ||
| Micrium OS | ||
| Micrium uC/OS | ||
| NXP MCUXpresso SDK | ||
| NXP MQX | ||
| newlib | ||
| RIOT OS | ||
| Samsung Tizen RT | ||
| TencentOS-tiny | ||
| Texas Instruments SimpleLink CC32XX | ||
| Texas Instruments SimpleLink MSP432E4 SDK | ||
| Texas Instruments SimpleLink CC13X2 SDK | ||
| Texas Instruments SimpleLink CC26XX | ||
| Texas Instruments SimpleLink CC32XX | ||
| uClibc | ||
| Wind River VxWorks | ||
| Zephyr Project RTOS |
Remedy
Update Micrium OS to v5.10.2 or later – Update available
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-27411.
What is the severity of CVE-2021-27411?
The severity of CVE-2021-27411 is medium with a severity value of 6.5.
Which software versions are affected by CVE-2021-27411?
Micrium OS versions 5.10.1 and prior are affected by CVE-2021-27411.
How does CVE-2021-27411 impact memory allocation?
CVE-2021-27411 can lead to arbitrary memory allocation, resulting in unexpected behavior such as very small blocks of memory being allocated.
How can I fix CVE-2021-27411?
To fix CVE-2021-27411, it is recommended to update to a version of Micrium OS that is not affected by the vulnerability.
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