OSV-2018-36 UNKNOWN READ in ebml_parse_chunk

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7887 Crash type: UNKNOWN READ Crash state: ebmlparsechunk matroskatypefind gsttypefindfactorycallfunction...

gstreamer/typefind: Crash in ebml_parse_chunk

Project: https://anongit.freedesktop.org/git/gstreamer/gstreamer Detailed report: https://oss-fuzz.com/testcase?key=5148902756974592 Project: gstreamer Fuzzer: libFuzzergstreamertypefind Fuzz target binary: typefind Job Type: libfuzzerubsangstreamer Platform Id: linux Crash Type: UNKNOWN READ Cra...