Integer overflow in Micrium OS
CVE-2021-27411
Micrium OS Versions 5.10.1 and prior are vulnerable to integer wrap-around in functions Mem_DynPoolCreate, Mem_DynPoolCreateHW and Mem_PoolCreate. 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.
Vulnerability class: Integer Overflow
EPSS: 0.009 (54.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Micrium Os — versions unspecified
- Silabs Micrium_os
Weakness classification (CWE)
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-2021-27411?
- CVE-2021-27411 is a medium-severity vulnerability in Micrium OS, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2022-05-03.
- How severe is CVE-2021-27411?
- Medium severity. CVSS v3 base score is 6.5 out of 10.