WildMIDI vulnerabilities

WildMIDI through 0.5.0 contains a heap out-of-bounds read vulnerability in _WM_ParseNewHmi() in src/f_hmi.c that reads past buffers when handling 0xfe sub-events. Attackers can supply a crafted HMI file placing a 0xfe 0x10 sub-event near the buffer end to read up to four bytes past the allocation, crashing the decoding application.

WildMIDI through 0.5.0 contains a heap out-of-bounds read vulnerability in the HMP parser _WM_ParseNewHmp() that allows attackers to read beyond buffers via underflowed chunk lengths. Attackers can supply a crafted .hmp file with a chunk length of 0-12 that wraps to roughly 4 GB, crashing applications or exposing heap bytes through WildMidi_GetInfo().

The _WM_ParseNewMidi function in f_midi.c in WildMIDI 0.4.2 can lead to denial of service through invalid memory read and application crash when processing a crafted mid file.

The _WM_SetupMidiEvent function in internal_midi.c in WildMIDI 0.4.2 can lead to denial of service through invalid memory reads and application crashes when processing a crafted MIDI file.