CVE-2022-25334
Assigner: NCSC-NL
Published: 2023-10-19T09:36:09.230Z
State: PUBLISHED
affected: defaultStatus: affected
vendor: Texas Instruments
product: OMAP
versions: version: L138
status: affected
title: Stack overflow on SK_LOAD signature length field in Texas Instruments OMAP L138
descriptions: value: 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.
problemTypes: descriptions: cweId: CWE-121
description: Stack-based Buffer Overflow
type: CWE
credits: value: Midnight Blue
type: finder
metrics: format: CVSS
scenarios: value: GENERAL
cvssV3_1: version: 3.1
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: CHANGED
confidentialityImpact: LOW
integrityImpact: HIGH
availabilityImpact: HIGH
baseScore: 8.2
baseSeverity: CRITICAL
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:F/RL:U/RC:C/CR:H/IR:H/AR:H/MAV:L/MAC:L/MPR:H/MUI:N/MS:C/MC:H/MI:H/MA:H