OSV-2018-130 Stack-buffer-overflow in parse_tables

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12466 Crash type: Stack-buffer-overflow WRITE 7 Crash state: parsetables processblock douncompressfile...

OSV-2018-68 Heap-buffer-overflow in read_bits_16

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12817 Crash type: Heap-buffer-overflow READ 1 Crash state: readbits16 decodenumber parsetables...