CVE-2023-2683— Connection update while closing connection may lead to denial-of-service
Quick assessment
Affected
silabs.com Bluetooth SDK
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.
Silicon Labs EFR32是美国芯科科技（Silicon Labs）公司的一系列 SoC 无线组件。 Silicon Labs EFR32 Bluetooth LE stack 5.1.0版本至5.1.1版本存在安全漏洞。攻击者利用该漏洞发送无效的配对消息，从而导致合法的连接尝试失败。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-2683
Vulnerability Information
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Vulnerability Title
Connection update while closing connection may lead to denial-of-service
Source: CVE Program / CVE List V5
Vulnerability Description
A memory leak in the EFR32 Bluetooth LE stack 5.1.0 through 5.1.1 allows an attacker to send an invalid pairing message and cause future legitimate connection attempts to fail. A reset of the device immediately clears the error.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
Silicon Labs EFR32 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Silicon Labs EFR32是美国芯科科技（Silicon Labs）公司的一系列 SoC 无线组件。 Silicon Labs EFR32 Bluetooth LE stack 5.1.0版本至5.1.1版本存在安全漏洞。攻击者利用该漏洞发送无效的配对消息，从而导致合法的连接尝试失败。
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 |
|---|---|---|---|---|
| silabs.com | Bluetooth SDK | 5.0.0 ~ v5.1.1 | - |
|
II. Public POCs for CVE-2023-2683
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2023-2683 (2)
Same Patch Batch · silabs.com · 2023-06-15 · 3 CVEs total
| CVE-2023-2686 | 9.8 CRITICAL | Silicon Labs Gecko SDK 安全漏洞 |
| CVE-2023-2747 | 3.1 LOW | Uninitialized IV in Silicon Labs SE FW v2.0.0 through v 2.2.1 for internally stored data |
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V. Comments for CVE-2023-2683
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