CVE-2021-31786
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.
Actions ATS2815是Actions的一款蓝牙芯片。 Actions ATS2815 存在输入验证错误漏洞，该漏洞源于Actions ATS2815 和 ATS2819 芯片组上的蓝牙经典实现无法正确处理多个 LMP_host_connection_req 数据包的接收，允许无线电范围内的攻击者通过精心制作的 LMP 数据包触发设备拒绝服务（死锁）。需要手动用户干预才能重新启动设备并恢复蓝牙通信。
Possible ATT&CK Techniques 2 AI
T1216 · System Script Proxy Execution T1046 · Network Service Discovery
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I. Basic Information for CVE-2021-31786
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Bluetooth Classic Audio implementation on Actions ATS2815 and ATS2819 devices does not properly handle a connection attempt from a host with the same BDAddress as the current connected BT host, allowing attackers to trigger a disconnection and deadlock of the device by connecting with a forged BDAddress that matches the original connected host.
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
Actions ATS2815 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Actions ATS2815是Actions的一款蓝牙芯片。 Actions ATS2815 存在输入验证错误漏洞，该漏洞源于Actions ATS2815 和 ATS2819 芯片组上的蓝牙经典实现无法正确处理多个 LMP_host_connection_req 数据包的接收，允许无线电范围内的攻击者通过精心制作的 LMP 数据包触发设备拒绝服务（死锁）。需要手动用户干预才能重新启动设备并恢复蓝牙通信。
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-2021-31786
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-31786 (3)
-
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf x_refsource_MISC
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https://launchstudio.bluetooth.com/ListingDetails/76427 x_refsource_MISC
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https://www.actions-semi.com/index.php?id=3581&siteId=4 x_refsource_MISC
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-2021-31785 | Actions ATS2815输入验证错误漏洞 | |
| CVE-2021-31609 | Silicon Labs iWRAP 安全漏洞 | |
| CVE-2021-34147 | Cypress WICED BT 输入验证错误漏洞 | |
| CVE-2021-28139 | Espressif ESP-IDF 代码注入漏洞 | |
| CVE-2021-34148 | 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
V. Comments for CVE-2021-31786
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