Adobe Security Bulletin APSB16-36 for Adobe Flash Player describes a flaw that can possibly lead to code execution when Flash Player is used to play a specially crafted SWF file. Quoting from the APSB16-36: These updates resolve a use-after-free vulnerability that could lead to code execution (CVE-2016-7855). External References: https://helpx.adobe.com/security/products/flash-player/apsb16-36.html
This issue has been addressed in the following products: Red Hat Enterprise Linux 5 Supplementary Red Hat Enterprise Linux 6 Supplementary Via RHSA-2016:2119 https://rhn.redhat.com/errata/RHSA-2016-2119.html