CVE-2021-22636— Texas Instruments TI-RTOS Integer Overflow or Wraparound
Quick assessment
Affected
Texas Instruments CC32XX
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 TI-RTOS-MCU是美国德州仪器（Texas Instruments）公司的一个应用系统。用于微控制器 (MCU) 的实时操作系统 (RTOS)。 Texas Instrument TI-RTOS 存在输入验证错误漏洞，该漏洞源于返回一个有效的指针，指向一个非常大的值上的一个小缓冲区，这可能会触发malloc中的整数溢出漏洞并导致代码执行。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-22636
Vulnerability Information
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Vulnerability Title
Texas Instruments TI-RTOS Integer Overflow or Wraparound
Source: CVE Program / CVE List V5
Vulnerability Description
Texas Instruments TI-RTOS, when configured to use HeapMem heap(default), malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in 'HeapMem_allocUnprotected' and result in code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Texas Instruments TI-RTOS-MCU 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Texas Instruments TI-RTOS-MCU是美国德州仪器（Texas Instruments）公司的一个应用系统。用于微控制器 (MCU) 的实时操作系统 (RTOS)。 Texas Instrument TI-RTOS 存在输入验证错误漏洞，该漏洞源于返回一个有效的指针，指向一个非常大的值上的一个小缓冲区，这可能会触发malloc中的整数溢出漏洞并导致代码执行。
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 | CC32XX | 0 ~ 4.40.00.07 | - |
|
| Texas Instruments | SimpleLink MSP432E4XX | all versions | - |
|
| Texas Instruments | SimpleLink-CC13XX | 0 ~ 4.40.00 | - |
|
| Texas Instruments | SimpleLink-CC26XX | 0 ~ 4.40.00 | - |
|
| Texas Instruments | SimpleLink-CC32XX | 0 ~ 4.10.03 | - |
|
II. Public POCs for CVE-2021-22636
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-22636 (1)
Other References for CVE-2021-22636 (1)
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V. Comments for CVE-2021-22636
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