libcoap Stack-Based Buffer Overflow in Address Resolution DoS or Potential RCE

libcoap versions up to and including 4.3.5, prior to commit 30db3ea, contain a stack-based buffer overflow in address resolution when attacker-controlled hostname data is copied into a fixed 256-byte stack buffer without proper bounds checking. A remote attacker can trigger a crash and potentially achieve remote code execution depending on compiler options and runtime memory protections. Exploitation requires the proxy logic to be enabled (i.e., the proxy request handling code path in an application using libcoap).

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栈缓冲区溢出

libcoap 安全漏洞

libcoap是obgm开源的一个轻量级应用程序协议的 C 实现。 libcoap 4.3.5及之前版本存在安全漏洞，该漏洞源于地址解析时存在栈缓冲区溢出，可能导致崩溃或远程代码执行。

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