An issue was discovered in lib_mem.c in Micrium uC/OS uC/LIB 1.38.x and 1.39.00. The following memory allocation functions do not check for integer overflow when allocating a pool whose size exceeds the address space: Mem_PoolCreate, Mem_DynPoolCreate, and Mem_DynPoolCreateHW. Because these functions use multiplication to calculate the pool sizes, the operation may cause an integer overflow if the arguments are large enough. The resulting memory pool will be smaller than expected and may be exploited by an attacker.
References
| Link | Resource |
|---|---|
| https://docs.silabs.com/micrium/latest/micrium-common/ | Vendor Advisory |
| https://micrium.atlassian.net/wiki/spaces/libdoc138/ | Third Party Advisory |
| https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 | Third Party Advisory US Government Resource |
| https://docs.silabs.com/micrium/latest/micrium-common/ | Vendor Advisory |
| https://micrium.atlassian.net/wiki/spaces/libdoc138/ | Third Party Advisory |
| https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 | Third Party Advisory US Government Resource |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 05:56
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://docs.silabs.com/micrium/latest/micrium-common/ - Vendor Advisory | |
| References | () https://micrium.atlassian.net/wiki/spaces/libdoc138/ - Third Party Advisory | |
| References | () https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 - Third Party Advisory, US Government Resource |
Information
Published : 2022-01-24 01:15
Updated : 2024-11-21 05:56
NVD link : CVE-2021-26706
Mitre link : CVE-2021-26706
CVE.ORG link : CVE-2021-26706
JSON object : View
Products Affected
micrium
- uc\/lib
CWE
CWE-190
Integer Overflow or Wraparound