CVE-2021-22636 Texas Instruments TI-RTOS Integer Overflow or Wraparound
An integer overflow in TI-RTOS HeapMem allocation allows remote attackers to execute arbitrary code on affected embedded devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-22636?
CVE-2021-22636 is a high-severity vulnerability in Texas Instruments CC32XX, published on 20 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-190
Which versions are affected by CVE-2021-22636?
It affects 6 products.
Products include Ti Real-Time Operating System, Ti Simplelink Cc13xx Software Development Kit, Ti Simplelink Cc26xx Software Development Kit, Ti Simplelink Cc32xx Software Development Kit, Ti Simplelink Msp432e401y, Ti Simplelink Msp432e411y.
How do I fix CVE-2021-22636?
No fix has been published for CVE-2021-22636 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-22636 being exploited?
There is no known exploitation of CVE-2021-22636 in the wild and no public exploit code.
Other vulnerabilities in Texas Instruments CC32XX
Sources
Also known as GHSA-9mr9-5rxq-78hc.