# 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.

- **Severity:** High 8.2 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:F/RL:U/RC:C/CR:H/IR:H/AR:H/MAV:L/MAC:L/MPR:H/MUI:N/MS:C/MC:H/MI:H/MA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Oct 2023
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-q84w-p2g5-rxw9

## 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.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2022-25334?

It affects 1 product.


Products: 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.

## 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

- [CVE-2022-25333](https://insights.sbomify.com/CVE-2022-25333/): Flawed SK_LOAD module authenticity check in Texas Instruments OMAP L138 (high 8.2)
- [CVE-2022-25332](https://insights.sbomify.com/CVE-2022-25332/): SK_LOAD timing side channel during AES module decryption in Texas Instruments OMAP L138 (medium 4.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-25334 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2022-25334 in the wild and no public exploit code.

Affected product: Texas Instruments OMAP. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-25334/ (Markdown: https://insights.sbomify.com/CVE-2022-25334/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-25334
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-25334
- OSV: https://osv.dev/vulnerability/CVE-2022-25334

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-25334/
Summaries are generated and may contain mistakes; the official description above is the record.