Integer overflow in Nxp Mcuxpresso Sdk
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.
Vulnerability class: Integer Overflow
EPSS: 0.008 (54.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Nxp Mcuxpresso Sdk — versions unspecified
- Nxp Mcuxpresso_software_development_kit
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ics-cert@hq.dhs.gov (x_refsource_CONFIRM, US Government Resource, Third Party Advisory)
- ics-cert@hq.dhs.gov (x_refsource_CONFIRM, Product, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-27421?
- CVE-2021-27421 is a high-severity vulnerability in Nxp Mcuxpresso Sdk, classified under Integer Overflow or Wraparound. CVSS score: 7.3/10. Published 2022-05-03.
- How severe is CVE-2021-27421?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2021-27421 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.