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CVE-2021-34147

Quick assessment

Affected
n/a n/a
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.

Cypress WICED BT是cypress的一个全功能的平台。 Cypress WICED BT 存在输入验证错误漏洞，该漏洞源于Cypress WICED BT 堆栈中的 Bluetooth Classic 实现通过 2.9.0 用于 CYW20735B1 无法正确处理接收格式错误的 LMP 定时准确度响应，然后多次重新连接到链路从设备，从而使攻击者可以耗尽设备 BT 资源并最终触发崩溃通过多次尝试发送精心制作的 LMP 计时准确度响应，然后突然与随机 BDAddress 重新连接。

AI Predicted 7.5 Difficulty: Easy EPSS 0.58% · P46

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-34147

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 does not properly handle the reception of a malformed LMP timing accuracy response followed by multiple reconnections to the link slave, allowing attackers to exhaust device BT resources and eventually trigger a crash via multiple attempts of sending a crafted LMP timing accuracy response followed by a sudden reconnection with a random BDAddress.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Cypress WICED BT 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cypress WICED BT是cypress的一个全功能的平台。 Cypress WICED BT 存在输入验证错误漏洞，该漏洞源于Cypress WICED BT 堆栈中的 Bluetooth Classic 实现通过 2.9.0 用于 CYW20735B1 无法正确处理接收格式错误的 LMP 定时准确度响应，然后多次重新连接到链路从设备，从而使攻击者可以耗尽设备 BT 资源并最终触发崩溃通过多次尝试发送精心制作的 LMP 计时准确度响应，然后突然与随机 BDAddress 重新连接。
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
- n/a n/a -

II. Public POCs for CVE-2021-34147

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III. Intelligence Information for CVE-2021-34147

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Other References for CVE-2021-34147 (2)

Same Patch Batch · n/a · 2021-09-07 · 102 CVEs total

CVE-2021-38617 8.8 HIGH Eigen NLP 安全漏洞
CVE-2021-38616 7.6 HIGH Eigen NLP 安全漏洞
CVE-2021-38615 6.3 MEDIUM Eigen NLP 安全漏洞
CVE-2021-38841 Simple Water Refilling Station Management System 代码问题漏洞
CVE-2021-38840 Simple Water Refilling Station Management System SQL注入漏洞
CVE-2021-39278 Moxa多款产品跨站脚本漏洞
CVE-2021-39279 Moxa 多款产品操作系统命令注入漏洞
CVE-2021-28136 Espressif ESP-IDF缓冲区错误漏洞
CVE-2021-34144 Zhuhai Jieli AC690X输入验证错误漏洞
CVE-2021-28135 Espressif ESP-IDF 安全漏洞
CVE-2021-28155 JBL TUNE500BT输入验证错误漏洞
CVE-2021-34150 Bluetrum AB5301A 缓冲区错误漏洞
CVE-2021-31613 Zhuhai Jieli AC690X输入验证错误漏洞
CVE-2021-31611 Zhuhai Jieli AC690X 输入验证错误漏洞
CVE-2021-31786 Actions ATS2815 输入验证错误漏洞
CVE-2021-31609 Silicon Labs iWRAP 安全漏洞
CVE-2021-34148 Cypress WICED BT输入验证错误漏洞
CVE-2021-28139 Espressif ESP-IDF 代码注入漏洞
CVE-2021-34145 Cypress WICED BT 输入验证错误漏洞
CVE-2021-31612 Zhuhai Jieli AC690X 安全漏洞

Showing top 20 of 102 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-34147

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