CVE-2021-26461: malloc, realloc and memalign implementations are vulnerable to integer wrap-arounds
First published: Mon Jun 21 2021(Updated: )
Apache Nuttx Versions prior to 10.1.0 are vulnerable to integer wrap-around in functions malloc, realloc and memalign. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.
Credit: security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache NuttX | <10.1.0 | |
| 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 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-26461?
CVE-2021-26461 is considered a critical vulnerability due to its potential for arbitrary memory allocation and remote code execution.
How do I fix CVE-2021-26461?
To fix CVE-2021-26461, upgrade to Apache Nuttx version 10.1.0 or later.
What are the consequences of exploiting CVE-2021-26461?
Exploitation of CVE-2021-26461 can lead to unexpected behavior such as system crashes or remote code execution.
Which versions of software are affected by CVE-2021-26461?
CVE-2021-26461 affects Apache Nuttx versions prior to 10.1.0 and several other embedded operating systems and components.
What systems are vulnerable to CVE-2021-26461?
Systems using affected versions of Apache Nuttx, Amazon FreeRTOS, and other related platforms are vulnerable to CVE-2021-26461.
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