Unrated severityNVD Advisory· Published May 3, 2022· Updated Apr 16, 2025
Micrium OS Integer Overflow or Wraparound
CVE-2021-27411
Description
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.
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Affected products
2- Range: <=5.10.1
- Micrium/Micrium OSv5Range: unspecified
Patches
Vulnerability mechanics
References
2- www.cisa.gov/uscert/ics/advisories/icsa-21-119-04mitrex_refsource_CONFIRM
- www.silabs.com/developers/micrium-osmitrex_refsource_CONFIRM
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