SK_LOAD timing side channel during AES module decryption in Texas Instruments OMAP L138
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-208.
Summary
The AES implementation in the Texas Instruments OMAP L138 (secure variants), present in mask ROM, suffers from a timing side channel which can be exploited by an adversary with non-secure supervisor privileges by managing cache contents and collecting timing information for different ciphertext inputs. Using this side channel, the SK_LOAD secure kernel routine can be used to recover the Customer Encryption Key (CEK).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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-2022-25332
- 2026-10-03 Alias added: GHSA-3jg7-ghg4-5pxr
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-2022-09025 Flawed SK_LOAD module authenticity check in Texas Instruments OMAP L138 CVSS 3.1HIGH 8.8
Sources
- CVE-2022-25332 · CVE Program
- CVE-2022-25332 · NVD
- FIRST EPSS
- GHSA-3jg7-ghg4-5pxr · GitHub Advisory Database · CC BY 4.0
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