CVE-2021-30636: Integer Overflow
First published: Mon Jan 24 2022(Updated: )
In MediaTek LinkIt SDK before 4.6.1, there is a possible memory corruption due to an integer overflow during mishandled memory allocation by pvPortCalloc and pvPortRealloc.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mediatek Linkit Software Development Kit | <4.6.1 | |
| 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 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-30636?
The severity of CVE-2021-30636 is considered high due to the potential for memory corruption leading to denial of service or arbitrary code execution.
How do I fix CVE-2021-30636?
To mitigate CVE-2021-30636, upgrade to MediaTek LinkIt SDK version 4.6.1 or later, or apply the recommended patches from the vendor.
Which versions of MediaTek LinkIt SDK are affected by CVE-2021-30636?
MediaTek LinkIt SDK versions prior to 4.6.1 are affected by CVE-2021-30636.
Can other software be affected by CVE-2021-30636?
Yes, CVE-2021-30636 impacts various software including Amazon FreeRTOS, Apache Nuttx OS, and several ARM and QNX products.
What types of vulnerabilities are associated with CVE-2021-30636?
CVE-2021-30636 is associated with memory corruption vulnerabilities due to integer overflow during memory allocation.
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- vendor/mediatek
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