CVE-2021-27429 Texas Instruments TI-RTOS Integer Overflow or Wraparound

High 7.4 Published 20 Nov 2023 Updated 3 Aug 2024

An integer overflow in TI-RTOS HeapTrack_alloc allows attackers to execute arbitrary code on affected Texas Instruments 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-2021-27429?

CVE-2021-27429 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 returns a valid pointer to a small buffer on extremely large values. This can trigger an integer overflow vulnerability in 'HeapTrack_alloc' and result in code execution.

Weakness: CWE-190

Which versions are affected by CVE-2021-27429?

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-2021-27429?

No fix has been published for CVE-2021-27429 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-27429 being exploited?

There is no known exploitation of CVE-2021-27429 in the wild and no public exploit code.

Sources

Also known as GHSA-vg9c-4wfp-f67w.