FreeType 2 before 2017-03-26 has an out-of-bounds write caused by a heap-based buffer overflow related to the t1_builder_close_contour function in psaux/psobjs.c.
git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=3774fc08b502c3e685afca098b6e8a195aded6a0
www.debian.org/security/2017/dsa-3839
www.securityfocus.com/bid/99091
bugs.chromium.org/p/oss-fuzz/issues/detail?id=941
security.gentoo.org/glsa/201706-14
www.oracle.com/security-alerts/cpuapr2020.html
www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html