Yesterday Adobe announced version 11.6 of the Flash player. All platforms are affected.
Version 11.6 includes several security fixes, as well as some new features.
The technical details are available in the release notes and in the related security bulletin from Adobe: APSB13-05.
Anyone using Flash (e.g. Youtube) should install the new version as soon as possible.
Rants and musings on topics of interest. Sometimes about Windows, Linux, security and cool software.