CVE-2022-25332 - CVE House
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Status published Medium CVE-2022-25332

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

Vulnerability 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).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Midnight Blue

References

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CVE-2021-27502
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CVE-2021-27429
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Affected Vendor

Texas Instruments

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Affected Software

OMAP
Vulnerable Versions:
L138

Timeline

Official Publish: October 19th, 2023
Last Modified: February 27th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: 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

Weaknesses (CWE)

CWE-208

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.