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USN-4050-1: ZeroMQ vulnerability

8 July 2019

ZeroMQ could be made to crash or run programs if it received specially crafted network traffic.



  • zeromq3 - lightweight messaging kernel


It was discovered that ZeroMQ incorrectly handled certain application metadata.
A remote attacker could use this issue to cause ZeroMQ to crash, or possibly
execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.04
Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.


Related notices

  • USN-4920-1: libzmq3, libzmq3-dev, zeromq3, libzmq5