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CVE-2022-25334— Stack overflow on SK_LOAD signature length field in Texas Instruments OMAP L138

Quick assessment

Affected
Texas Instruments OMAP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Texas Instruments OMAP L138是美国德州仪器（Texas Instruments）公司的一个DSP+ARM工业处理器。 Texas Instruments OMAP L138 (secure variants)存在安全漏洞，该漏洞源于(TEE) 缺少对掩码 ROM 中存在的 SK_LOAD 模块加载例程中的签名大小字段的边界检查，足够大签名字段的模块会导致堆栈溢出，从而影响安全内核数据页，攻击者利用该漏洞可以在安全管理程序上下文中任意代码执行。

CVSS 8.2 · High EPSS 0.20% · P9
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I. Basic Information for CVE-2022-25334

Vulnerability Information
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Vulnerability Title
Stack overflow on SK_LOAD signature length field in Texas Instruments OMAP L138
Source: CVE Program / CVE List V5
Vulnerability 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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Texas Instruments OMAP L138 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Texas Instruments OMAP L138是美国德州仪器（Texas Instruments）公司的一个DSP+ARM工业处理器。 Texas Instruments OMAP L138 (secure variants)存在安全漏洞，该漏洞源于(TEE) 缺少对掩码 ROM 中存在的 SK_LOAD 模块加载例程中的签名大小字段的边界检查，足够大签名字段的模块会导致堆栈溢出，从而影响安全内核数据页，攻击者利用该漏洞可以在安全管理程序上下文中任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Texas Instruments OMAP L138 -

II. Public POCs for CVE-2022-25334

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III. Intelligence Information for CVE-2022-25334

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Other References for CVE-2022-25334 (1)

Same Patch Batch · Texas Instruments · 2023-10-19 · 3 CVEs total

CVE-2022-25333 8.2 HIGH Flawed SK_LOAD module authenticity check in Texas Instruments OMAP L138
CVE-2022-25332 4.4 MEDIUM SK_LOAD timing side channel during AES module decryption in Texas Instruments OMAP L138

IV. Related Vulnerabilities

Same product: OMAP
Same vendor: Texas Instruments
Same weakness: CWE-121

V. Comments for CVE-2022-25334

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