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CVE-2021-31785

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。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-31785

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Bluetooth Classic implementation on Actions ATS2815 and ATS2819 chipsets does not properly handle the reception of multiple LMP_host_connection_req packets, allowing attackers in radio range to trigger a denial of service (deadlock) of the device via crafted LMP packets. Manual user intervention is required to restart the device and restore Bluetooth communication.
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-2021-31785

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III. Intelligence Information for CVE-2021-31785

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Other References for CVE-2021-31785 (3)

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-2021-34147 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

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

V. Comments for CVE-2021-31785

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