Graphite2 - TtfUtil::CmapSubtable4NextCodepoint Heap Based Overread

Exploit for multiple platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=755 The following crash due to a heap-based buffer overread can be observed in an ASAN build of the standard Graphite2 gr2FontTest utility git trunk, triggered with the following...