CVE-2016-6885
The pstm_exptmod function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid free and crash) via a base zero value for the modular exponentiation.
Date published : 2017-01-13
http://www.matrixssl.org/blog/releases/matrixssl_3_8_4
https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more.html