CVE-2019-6250

EIP tracks 2 public exploits for CVE-2019-6250. PoCs published by AkashicYiTai, dinosn.

AI-analyzed exploit summary This repository contains a working proof-of-concept exploit for CVE-2019-6250, an integer overflow vulnerability in libzmq's v2_decoder.cpp. The exploit demonstrates how to trigger the vulnerability to achieve remote code execution by overwriting a function pointer in a struct.

A pointer overflow, with code execution, was discovered in ZeroMQ libzmq (aka 0MQ) 4.2.x and 4.3.x before 4.3.1. A v2_decoder.cpp zmq::v2_decoder_t::size_ready integer overflow allows an authenticated attacker to overwrite an arbitrary amount of bytes beyond the bounds of a buffer, which can be leveraged to run arbitrary code on the target system. The memory layout allows the attacker to inject OS commands into a data structure located immediately after the problematic buffer (i.e., it is not necessary to use a typical buffer-overflow exploitation technique that changes the flow of control).