CVE-2022-25334 Stack overflow on SK_LOAD signature length field in Texas Instruments OMAP L138
Attackers can achieve arbitrary code execution in the secure supervisor context via a stack overflow in the SK_LOAD module loading routine.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-25334?
CVE-2022-25334 is a high-severity memory corruption vulnerability in Texas Instruments OMAP, published on 19 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Texas Instruments OMAP L138 (secure variants) trusted execution environment (TEE) lacks a bounds check on the signature size field in the SK_LOAD module loading routine, present in mask ROM. A module with a sufficiently large signature field causes a stack overflow, affecting secure kernel data pages. This can be leveraged to obtain arbitrary code execution in secure supervisor context by overwriting a SHA256 function pointer in the secure kernel data area when loading a forged, unsigned SK_LOAD module encrypted with the CEK (obtainable through CVE-2022-25332). This constitutes a full break of the TEE security architecture.
Which versions are affected by CVE-2022-25334?
It affects 1 product.
Products include Ti Omap L138 Firmware.
How do I fix CVE-2022-25334?
No fix has been published for CVE-2022-25334 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-25334 being exploited?
There is no known exploitation of CVE-2022-25334 in the wild and no public exploit code.
Other vulnerabilities in Texas Instruments OMAP
Sources
Also known as GHSA-q84w-p2g5-rxw9.