Short Name |
APP:MISC:CVE-2019-6250-IN-OVER |
---|---|
Severity |
Critical |
Recommended |
No |
Recommended Action |
Drop |
Category |
APP |
Keywords |
ZeroMQ libzmq v2_decoder Integer Overflow |
Release Date |
2019/03/13 |
Update Number |
3150 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
This signature detects attempts to exploit a known vulnerability against ZeroMQ libzmq. A successful attack can lead to arbitrary code execution.
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).