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flac__analyse_frame
2020 Jul 02
2
Possible overflow of _candidate_bits in stream_encoder.c
...return value of that function overflows. When this happens,
the wrong order might be picked, and the file blows up to enormous
proportions. In my case, about 30 times the size of the original WAV file.
When analysing this problem, I found more or less the same overflow in
flac/analyse.c, where in flac__analyse_frame, frame_bytes is multiplied by
8.
Should I send a patch to change all affected uint32_t to uint64_t? Or is
this benign enough not to matter? As far as I can tell, such a patch should
only touch private functions, no public ones.
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