CVE-2022-25332
SK_LOAD timing side channel during AES module decryption in Texas Instruments OMAP L138
- State
- Published
- Severity
- 4.4 Medium
- Published
- Oct 19, 2023
- Updated
- Feb 27, 2025
- Reserved
- Feb 18, 2022
Description
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).
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.4 Medium | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:F/RL:U/RC:C/CR:H/IR:H/AR:H/MAV:L/MAC:L/MPR:H/MUI:N/MS:U/MC:H/MI:N/MA:N | NCSC-NL |
Weaknesses
- CWE-208 Observable Timing Discrepancy
Affected Products
| Product | Versions |
|---|---|
OMAPTexas Instruments |
|
References
- TETRA:BURSTrelated
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