// For flags

CVE-2022-25332

SK_LOAD timing side channel during AES module decryption in Texas Instruments OMAP L138

Severity Score

4.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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).

La implementación de AES en Texas Instruments OMAP L138 (variantes seguras), presente en la máscara ROM, sufre de un canal lateral de temporización que puede ser explotado por un adversario con privilegios de supervisor no seguros al administrar el contenido de la caché y recopilar información de temporización para diferentes entradas de texto cifrado. Usando este canal lateral, la rutina de kernel segura SK_LOAD se puede usar para recuperar el Customer Encryption Key (CEK).

*Credits: Midnight Blue
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-02-18 CVE Reserved
  • 2023-10-19 CVE Published
  • 2023-10-20 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-203: Observable Discrepancy
  • CWE-208: Observable Timing Discrepancy
CAPEC
References (1)
URL Tag Source
https://tetraburst.com Related
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Ti
Search vendor "Ti"
Omap L138 Firmware
Search vendor "Ti" for product "Omap L138 Firmware"
--
Affected
in Ti
Search vendor "Ti"
Omap L138
Search vendor "Ti" for product "Omap L138"
--
Safe