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  • ffmpeg
  • libavcodec
  • atrac3.c
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  • Michael Niedermayer's avatar
    avcodec/atrac3: Check for huge block aligns · ed04ecd2
    Michael Niedermayer authored Oct 20, 2019
    The largest documented frame size = block align is 1024 bytes
    (https://wiki.multimedia.cx/index.php/ATRAC3)
    
    Without a limit this can allocate arbitrary memory and trigger OOM
    Fixes: OOM
    Fixes: 18337/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC3_fuzzer-5763861478637568
    Fixes: 18556/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC3AL_fuzzer-5646183334936576
    
    Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
    (cherry picked from commit f09151ff)
    Signed-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
    ed04ecd2
atrac3.c 34.3 KB
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