CVE-2023-1901— HCI send_sync Dangling Semaphore Reference Re-use
Quick assessment
Affected
zephyrproject-rtos Zephyr
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.
Zephyr是Zephyr Project开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr 3.3及之前版本存在安全漏洞，该漏洞源于同步发送HCI命令后不清除对信号量的全局引用，可能会允许恶意HCI控制器导致在主机层中使用悬空引用，从而导致崩溃(DoS)。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-1901
Vulnerability Information
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Vulnerability Title
HCI send_sync Dangling Semaphore Reference Re-use
Source: CVE Program / CVE List V5
Vulnerability Description
The bluetooth HCI host layer logic not clearing a global reference to a semaphore after synchronously sending HCI commands may allow a malicious HCI Controller to cause the use of a dangling reference in the host layer, leading to a crash (DoS) or potential RCE on the Host layer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Zephyr 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zephyr是Zephyr Project开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr 3.3及之前版本存在安全漏洞，该漏洞源于同步发送HCI命令后不清除对信号量的全局引用，可能会允许恶意HCI控制器导致在主机层中使用悬空引用，从而导致崩溃(DoS)。
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 |
|---|---|---|---|---|
| zephyrproject-rtos | Zephyr | * ~ 3.3 | - |
|
II. Public POCs for CVE-2023-1901
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · zephyrproject-rtos · 2023-07-10 · 4 CVEs total
| CVE-2023-2234 | 6.8 MEDIUM | BT HCI host union variant confusion |
| CVE-2023-1902 | 5.9 MEDIUM | HCI Connection Creation Dangling State Reference Re-use |
| CVE-2023-0359 | 5.9 MEDIUM | ipv6: Missing ipv6 nullptr-check in handle_ra_input |
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V. Comments for CVE-2023-1901
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