NXP MCUXpresso SDK Integer Overflow or Wraparound
CVE-2021-27421

7.3HIGH

Key Information:

Vendor

Nxp

Status
Mcuxpresso Sdk
Vendor
CVE Published:
3 May 2022

What is CVE-2021-27421?

NXP MCUXpresso SDK versions prior to 2.8.2 are vulnerable to integer overflow in SDK_Malloc function, which could allow to access memory locations outside the bounds of a specified array, leading to unexpected behavior such segmentation fault when assigning a particular block of memory from the heap via malloc.

Affected Version(s)

MCUXpresso SDK < 2.8.2

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04
x_refsource_CONFIRM
https://mcuxpresso.nxp.com/en/welcome
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CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

David Atch, Omri Ben Bassat, and Tamir Ariel from Microsoft Section 52, and the Azure Defender for IoT research group reported these vulnerabilities to CISA.
.