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I. Basic Information for CVE-2025-34451
Vulnerability Information

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Vulnerability Title
rofl0r/proxychains-ng <= 4.17 Stack-based Buffer Overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
rofl0r/proxychains-ng versions up to and including 4.17 and prior to commit cc005b7 contain a stack-based buffer overflow vulnerability in the function proxy_from_string() located in src/libproxychains.c. When parsing crafted proxy configuration entries containing overly long username or password fields, the application may write beyond the bounds of fixed-size stack buffers, leading to memory corruption or crashes. This vulnerability may allow denial of service and, under certain conditions, could be leveraged for further exploitation depending on the execution environment and applied mitigations.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
proxychains-ng 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
proxychains-ng是rofl0r个人开发者的一个预加载程序。 proxychains-ng 4.17及之前版本和cc005b7之前版本存在安全漏洞,该漏洞源于proxy_from_string函数存在栈缓冲区溢出,可能导致内存损坏或崩溃。
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
VendorProductAffected VersionsCPESubscribe
rofl0rproxychains-ng 0 ~ 4.17 -
II. Public POCs for CVE-2025-34451
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III. Intelligence Information for CVE-2025-34451
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