LibreOffice before 2017-03-11 has an out-of-bounds write caused by a heap-based buffer overflow in the SVMConverter::ImplConvertFromSVM1 function in vcl/source/gdi/svmconverter.cxx.
https://github.com/LibreOffice/core/commit/28e61b634353110445e334ccaa415d7fb6629d62
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=817
http://www.securityfocus.com/bid/97667
http://www.libreoffice.org/about-us/security/advisories/cve-2017-7856/