Last week the well-known open source media player VLC created by the VideoLAN non-profit organization was updated to version 2.2.3.
This update is available for Linux, Apple Mac OS X and Windows. It addresses at least 3 security issues (more details are not readily available) mentioned here (3rd party library security issues), here (stack overflow (defined) and here (RealRTSP module). This update is available for download for the above operating systems from this page.
If you use VLC, please update as soon as possible to benefit from the security fixes version 2.2.3 includes as well as the more than 30 general software bugs that were also addressed.