Adobe Flash Player versions 24.0.0.221 and earlier have an exploitable buffer overflow / underflow vulnerability in the Primetime TVSDK that supports customizing ad information. Successful exploitation could lead to arbitrary code execution.
http://rhn.redhat.com/errata/RHSA-2017-0526.html
https://helpx.adobe.com/security/products/flash-player/apsb17-07.html