| Package | Affected versions | Patched versions |
|---|---|---|
| libzmq | ≥ 4.2.0, ≤ 4.2.5≥ 4.3.0, < 4.3.1 | 4.3.1 |
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).
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free