OSV-2023-554 Heap-buffer-overflow in OT::CmapSubtable::get_glyph

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=60475 Crash type: Heap-buffer-overflow READ 2 Crash state: OT::CmapSubtable::getglyph bool OT::cmap::acceleratort::getglyphfrom hbotgetnominalglyphs...

harfbuzz/hb-shape-fuzzer: Use-of-uninitialized-value in CFF::Charset1_2<OT::IntType<unsigned char, 1u> >::get_glyph

Project: https://github.com/harfbuzz/harfbuzz.git Detailed report: https://oss-fuzz.com/testcase?key=5632586529898496 Project: harfbuzz Fuzzer: libFuzzerharfbuzzhb-shape-fuzzer Fuzz target binary: hb-shape-fuzzer Job Type: libfuzzermsanharfbuzz Platform Id: linux Crash Type:...