ffmpeg | branch: release/2.8 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Dec 14 00:37:27 2019 +0100| [74673ba2762fc410ce806ba372614827dcd86619] | committer: Michael Niedermayer
avcodec/mp3_header_decompress_bsf: Check sample_rate_index Fixes: out of array read Fixes: 19309/clusterfuzz-testcase-minimized-ffmpeg_BSF_MP3_HEADER_DECOMPRESS_fuzzer-5651002950942720 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <one...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit f064c7c449f162a9011ad890f26ceeca26934d22) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=74673ba2762fc410ce806ba372614827dcd86619 --- libavcodec/mp3_header_decompress_bsf.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/mp3_header_decompress_bsf.c b/libavcodec/mp3_header_decompress_bsf.c index 95c0b5b769..cd0b1e12fe 100644 --- a/libavcodec/mp3_header_decompress_bsf.c +++ b/libavcodec/mp3_header_decompress_bsf.c @@ -51,6 +51,10 @@ static int mp3_header_decompress(AVBitStreamFilterContext *bsfc, AVCodecContext lsf = sample_rate < (24000+32000)/2; mpeg25 = sample_rate < (12000+16000)/2; sample_rate_index= (header>>10)&3; + if (sample_rate_index == 3) { + return AVERROR_INVALIDDATA; + } + sample_rate= avpriv_mpa_freq_tab[sample_rate_index] >> (lsf + mpeg25); //in case sample rate is a little off for(bitrate_index=2; bitrate_index<30; bitrate_index++){ _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
