An issue was discovered in Adobe Acrobat and Reader: 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, and 11.0.22 and earlier versions. This vulnerability is an instance of a type confusion overflow vulnerability in the graphics rendering engine.
https://helpx.adobe.com/security/products/acrobat/apsb17-36.html