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CVE-2021-43400

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.

BlueZ是一款使用C语言编写的蓝牙协议堆栈，它主要用于提供对核心蓝牙层和协议的支持。 BlueZ 中存在资源管理错误漏洞，该漏洞源于产品的gatt-database.c文件的D-Bus未能正确处理WriteValue。以下产品及版本受到影响：BlueZ 5.61 版本。

AI Predicted 5.9 Difficulty: Moderate EPSS 1.66% · P76

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-43400

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.
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
BlueZ 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BlueZ是一款使用C语言编写的蓝牙协议堆栈，它主要用于提供对核心蓝牙层和协议的支持。 BlueZ 中存在资源管理错误漏洞，该漏洞源于产品的gatt-database.c文件的D-Bus未能正确处理WriteValue。以下产品及版本受到影响：BlueZ 5.61 版本。
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-2021-43400

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-43400

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Patches & Fixes for CVE-2021-43400 (1)

Mailing List Discussions for CVE-2021-43400 (1)

Same Patch Batch · n/a · 2021-11-04 · 12 CVEs total

CVE-2020-25367 D-Link DIR-823G 命令注入漏洞
CVE-2020-25366 D-Link DIR-823G 安全漏洞
CVE-2020-25368 D-Link DIR-823G 命令注入漏洞
CVE-2021-42624 Miniftpd 安全漏洞
CVE-2021-43281 MyBB 代码注入漏洞
CVE-2021-43293 Sonatype Nexus Repository 代码问题漏洞
CVE-2021-43389 Linux kernel 缓冲区错误漏洞
CVE-2020-21139 EC Cloud E-Commerce System 跨站请求伪造漏洞
CVE-2021-43396 GNU C Library 安全漏洞
CVE-2021-43398 Crypto++ 安全漏洞
CVE-2021-42057 obsidian-dataview 代码注入漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-43400

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