CVE-2021-27421 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8