New versions are available for Windows, Mac and Linux versions of Flash for the second time this month. The patch provides additional protection on a vulnerability that Adobe fixed earlier this year. Adobe Flash Player for Linux has been updated to v. 11.2.202.424424.0.239. Users of the Flash Player desktop runtime for Windows and Macintosh should update to v 15.0 0.239 by visiting the Adobe Flash player Download Center, or via the update mechanism within the product when prompted.”]
Source: https://krebsonsecurity.com/2014/11/adobe-pushes-critical-flash-patch/