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  • Xiph.Org
  • Vorbis toolsVorbis tools
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  • #2136
Closed
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Created Dec 29, 2014 by Paris Zoumpouloglou@zuBux

Oggenc channel integer overflow

I discovered an integer overflow issue in oggenc, related to the number of channels in the input WAV file. The issue triggers an out-of-bounds memory access which causes oggenc to crash here (audio.c) :

576 memcpy(wav->channel_permute, wav_permute_matrix[wav->channels-1], 
577	                    sizeof(int) * wav->channels);

Tests were performed using vorbis-tools 1.4.0

Edited Dec 06, 2020 by Philipp Schafft
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