Adobe Security Bulletin APSB18-05 for Adobe Flash Player describes a type confusion flaw that can possibly lead to remote code execution when Flash Player is used to play a specially crafted SWF file. External References: https://helpx.adobe.com/security/products/flash-player/apsb18-05.html
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Supplementary Via RHSA-2018:0520 https://access.redhat.com/errata/RHSA-2018:0520