Overview
- Description
- The Texas Instruments OMAP L138 (secure variants) trusted execution environment (TEE) lacks a bounds check on the signature size field in the SK_LOAD module loading routine, present in mask ROM. A module with a sufficiently large signature field causes a stack overflow, affecting secure kernel data pages. This can be leveraged to obtain arbitrary code execution in secure supervisor context by overwriting a SHA256 function pointer in the secure kernel data area when loading a forged, unsigned SK_LOAD module encrypted with the CEK (obtainable through CVE-2022-25332). This constitutes a full break of the TEE security architecture.
- Source
- cert@ncsc.nl
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.8
- Impact score
- 6
- Exploitability score
- 2
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Severity
- HIGH
Social media
- Hype score
- Not currently trending
Configurations
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