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CVE-2024-3120— Stack-Buffer Overflow in 'Content-Length' and 'Warning' Header Processing in sngrep

Quick assessment

Affected
irontec sngrep
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Irontec Sngrep是Irontec公司的一个用于显示来自终端的SIP呼叫消息流的工具。 Irontec Sngrep v1.4.1 到 v1.8.1版本存在安全漏洞，该漏洞源于将 Content-Length 和 Warning 标头复制到 src/sip.c 中的 sip_validate_packet 和 sip_parse_extra_headers 函数中，固定大小缓冲区时边界检查不充分，导致任意代码执行或拒绝服务。

CVSS 9.0 · Critical EPSS 1.85% · P79
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I. Basic Information for CVE-2024-3120

Vulnerability Information
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Vulnerability Title
Stack-Buffer Overflow in 'Content-Length' and 'Warning' Header Processing in sngrep
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-buffer overflow vulnerability exists in all versions of sngrep since v1.4.1. The flaw is due to inadequate bounds checking when copying 'Content-Length' and 'Warning' headers into fixed-size buffers in the sip_validate_packet and sip_parse_extra_headers functions within src/sip.c. This vulnerability allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via crafted SIP messages.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Irontec Sngrep 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Irontec Sngrep是Irontec公司的一个用于显示来自终端的SIP呼叫消息流的工具。 Irontec Sngrep v1.4.1 到 v1.8.1版本存在安全漏洞，该漏洞源于将 Content-Length 和 Warning 标头复制到 src/sip.c 中的 sip_validate_packet 和 sip_parse_extra_headers 函数中，固定大小缓冲区时边界检查不充分，导致任意代码执行或拒绝服务。
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
irontec sngrep 1.4.1 ~ 1.8.0 -

II. Public POCs for CVE-2024-3120

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9707 chars
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III. Intelligence Information for CVE-2024-3120

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Patches & Fixes for CVE-2024-3120 (1)

IV. Related Vulnerabilities

Same product: sngrep
Same vendor: irontec
Same weakness: CWE-120

V. Comments for CVE-2024-3120

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