An issue was discovered in Adobe Flash Player 27.0.0.183 and earlier versions. This vulnerability is an instance of a use after free vulnerability in the Primetime SDK. The mismatch between an old and a new object can provide an attacker with unintended memory access -- potentially leading to code corruption, control-flow hijack, or an information leak attack. Successful exploitation could lead to arbitrary code execution.
https://security.gentoo.org/glsa/201711-13
https://helpx.adobe.com/security/products/flash-player/apsb17-33.html
https://access.redhat.com/errata/RHSA-2017:3222