CVE-2024-38373— FreeRTOS-Plus-TCP Buffer Over-Read in DNS Response Parser
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I. Basic Information for CVE-2024-38373
Vulnerability Information
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Vulnerability Title
FreeRTOS-Plus-TCP Buffer Over-Read in DNS Response Parser
Source: NVD (National Vulnerability Database)
Vulnerability Description
FreeRTOS-Plus-TCP is a lightweight TCP/IP stack for FreeRTOS. FreeRTOS-Plus-TCP versions 4.0.0 through 4.1.0 contain a buffer over-read issue in the DNS Response Parser when parsing domain names in a DNS response. A carefully crafted DNS response with domain name length value greater than the actual domain name length, could cause the parser to read beyond the DNS response buffer. This issue affects applications using DNS functionality of the FreeRTOS-Plus-TCP stack. Applications that do not use DNS functionality are not affected, even when the DNS functionality is enabled. This vulnerability has been patched in version 4.1.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
缓冲区上溢读取
Source: NVD (National Vulnerability Database)
Vulnerability Title
FreeRTOS-Plus-TCP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeRTOS-Plus-TCP是FreeRTOS开源的一种适用于 FreeRTOS 的可扩展的开源和线程安全 TCP/IP 堆栈。 FreeRTOS-Plus-TCP 4.1.1之前版本存在安全漏洞，该漏洞源于DNS 响应解析器中存在缓冲区过度读取。
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)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| FreeRTOS | FreeRTOS-Plus-TCP | >= 4.0.0, <= 4.1.0 | - |
II. Public POCs for CVE-2024-38373
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: FreeRTOS-Plus-TCP
- CVE-2026-7426
Out-of-Bounds Write via Unsanitized Prefix Length in Router - CVE-2026-7425
Out-of-Bounds Read in Router Advertisement Option Parser in - CVE-2026-7424
Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Pl - CVE-2026-7423
Integer Underflow in ICMP Echo Reply Processing in FreeRTOS- - CVE-2026-7422
MAC Address Validation Bypass in FreeRTOS-Plus-TCP IPv4 and
V. Comments for CVE-2024-38373
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