A pointer overflow, with code execution, exists in ZeroMQ libzmq (aka 0MQ) 4.2.x and 4.3.x prior to 4.3.1. A v2_decoder.cpp zmq::v2_decoder_t::size_ready integer overflow allows an authenticated malicious user 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 malicious user 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).
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
zeromq libzmq |
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debian debian linux 9.0 |
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