Adobe Flash Player versions 23.0.0.207 and earlier, 11.2.202.644 and earlier have an exploitable memory corruption vulnerability in the Worker class. Successful exploitation could lead to arbitrary code execution.
https://security.gentoo.org/glsa/201701-17
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-154
http://www.zerodayinitiative.com/advisories/ZDI-16-627
https://helpx.adobe.com/security/products/flash-player/apsb16-39.html
https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-8720
http://www.securitytracker.com/id/1037442
http://lists.opensuse.org/opensuse-updates/2016-12/msg00112.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00064.html