Flawed SK_LOAD module authenticity check in Texas Instruments OMAP L138
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-347.
Summary
The Texas Instruments OMAP L138 (secure variants) trusted execution environment (TEE) performs an RSA check implemented in mask ROM when loading a module through the SK_LOAD routine. However, only the module header authenticity is validated. An adversary can re-use any correctly signed header and append a forged payload, to be encrypted using the CEK (obtainable through CVE-2022-25332) in order to obtain arbitrary code execution in secure context. This constitutes a full break of the TEE security architecture.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Texas Instruments | OMAP | L138 and later | — | No fix listed | CNA |
- OMAP VendorTexas Instruments Affected L138 and later Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ti:omap_l138_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Texas Instruments |
| cpe:2.3:h:ti:omap_l138:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Texas Instruments |
- cpe:2.3:o:ti:omap_l138_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Texas Instruments
- cpe:2.3:h:ti:omap_l138:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Texas Instruments
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-25333
- 2026-10-03 Alias added: GHSA-f4x5-257x-2739
References
Other 1
More Texas Instruments Omap L138 Firmware vulnerabilities
- TI-2022-09026 Stack overflow on SK_LOAD signature length field in Texas Instruments OMAP L138 CVSS 3.1HIGH 8.8
- TI-2022-09024 SK_LOAD timing side channel during AES module decryption in Texas Instruments OMAP L138 CVSS 3.1MEDIUM 4.4
Sources
- CVE-2022-25333 · CVE Program
- CVE-2022-25333 · NVD
- FIRST EPSS
- GHSA-f4x5-257x-2739 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences