Integer overflow in Texas Instruments Cc32xx
CVE-2021-22636
Texas Instruments TI-RTOS, when configured to use HeapMem heap(default), malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in 'HeapMem_allocUnprotected' and result in code execution.
Vulnerability class: Integer Overflow
EPSS: 0.003 (19.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Texas Instruments Cc32xx — versions 0
- Texas Instruments Simplelink-cc13xx — versions 0
- Texas Instruments Simplelink-cc26xx — versions 0
- Texas Instruments Simplelink-cc32xx — versions 0
- Texas Instruments Simplelink Msp432e4xx — versions all versions
- Ti Cc3200
- Ti Cc3220r
- Ti Cc3220s
- Ti Cc3220sf
- Ti Cc3230s
Weakness classification (CWE)
References
- ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory)
- ics-cert@hq.dhs.gov (Product)
Frequently asked questions
- What is CVE-2021-22636?
- CVE-2021-22636 is a high-severity vulnerability in Texas Instruments Cc32xx, classified under Integer Overflow or Wraparound. CVSS score: 7.4/10. Published 2023-11-20.
- How severe is CVE-2021-22636?
- High severity. CVSS v3 base score is 7.4 out of 10.