Security vulnerabilities and automated fixes for midi issues
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A critical heap buffer overflow vulnerability was discovered and patched in the midifile C library, where sysex and meta event data lengths read directly from MIDI files were used in memcpy calls without bounds checking. An attacker could craft a malicious MIDI file to corrupt heap memory, potentially leading to arbitrary code execution or application crashes. The fix introduces proper validation of data_length values before any memory copy operations are performed.