CVE-2021-27411: Micrium OS Integer Overflow or Wraparound

Q: What is the vulnerability ID?

The vulnerability ID is CVE-2021-27411.

Q: What is the severity of CVE-2021-27411?

The severity of CVE-2021-27411 is medium with a severity value of 6.5.

Q: Which software versions are affected by CVE-2021-27411?

Micrium OS versions 5.10.1 and prior are affected by CVE-2021-27411.

Q: 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.

Q: 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.

Published May 3, 2022

Updated

Micrium OS Versions 5.10.1 and prior are vulnerable to integer wrap-around in functions MemDynPoolCreate, MemDynPoolCreateHW and MemPoolCreate. 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.

Affected Software

30 affected components

Multiple Amazon FreeRTOS, Version 10.4.1

Multiple Apache Nuttx OS, Version 9.1.0

Multiple ARM CMSIS-RTOS2, versions prior to 2.1.3

Multiple ARM Mbed OS, Version 6.3.0

Multiple ARM mbed-ualloc, Version 1.3.0

Multiple BlackBerry QNX SDP Versions 6.5.0 SP1 and earlier

Multiple BlackBerry QNX OS for Safety Versions 1.0.1 and earlier safety products compliant with IEC 61508 and/or ISO 26262

Multiple BlackBerry QNX OS for Medical Versions 1.1 and earlier safety products compliant with IEC 62304 A full list of affected QNX products and versions is available here

Multiple A full list of affected QNX products and versions is available here

Multiple Cesanta Software Mongoose OS, v2.17.0

Multiple eCosCentric eCosPro RTOS, Versions 2.0.1 through 4.5.3

Multiple Google Cloud IoT Device SDK, Version 1.0.2

Multiple Media Tek LinkIt SDK, versions prior to 4.6.1

Multiple Micrium OS, Versions 5.10.1 and prior

Multiple Micrium uC/OS: uC/LIB Versions 1.38.xx, Version 1.39.00

Multiple NXP MCUXpresso SDK, versions prior to 2.8.2

Multiple NXP MQX, Versions 5.1 and prior

Multiple Redhat newlib, versions prior to 4.0.0

Multiple RIOT OS, Version 2020.01.1

Multiple Samsung Tizen RT RTOS, versions prior 3.0.GBB

Multiple TencentOS-tiny, Version 3.1.0

Multiple Texas Instruments CC32XX, versions prior to 4.40.00.07

Multiple Texas Instruments SimpleLink MSP432E4XX

Multiple Texas Instruments SimpleLink-CC13XX, versions prior to 4.40.00

Multiple Texas Instruments SimpleLink-CC26XX, versions prior to 4.40.00

Multiple Texas Instruments SimpleLink-CC32XX, versions prior to 4.10.03

Multiple Uclibc-NG, versions prior to 1.0.36

Multiple Windriver VxWorks, prior to 7.0

Multiple Zephyr Project RTOS, versions prior to 2.5

Silabs Micrium Os<=5.10.1

Remediation

Information

Update Micrium OS to v5.10.2 or later – Update available

Event History

May 3, 2022

CVE Published

via MITRE·08:18 PM

Data Sourced

via MITRE·08:18 PM

RemedyDescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

ICSA-21-119-04

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?