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October 2011

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Check for out of bound writes in the avs demuxer.
by git＠videolan.org 01 Oct '11

01 Oct '11

ffmpeg | branch: master | Laurent Aimar <fenrir(a)videolan.org> | Sat Oct 1 00:44:55 2011 +0200| [5d44c061cf511d97be5fac8d76be2f3915c6e798] | committer: Michael Niedermayer Check for out of bound writes in the avs demuxer. Signed-off-by: Michael Niedermayer <michaelni(a)gmx.at> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5d44c061cf511d97b… --- libavformat/avs.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/libavformat/avs.c b/libavformat/avs.c index 7b90f85..ad5ac05 100644 --- a/libavformat/avs.c +++ b/libavformat/avs.c @@ -169,6 +169,8 @@ static int avs_read_packet(AVFormatContext * s, AVPacket * pkt) switch (type) { case AVS_PALETTE: + if (size - 4 > sizeof(palette)) + return AVERROR_INVALIDDATA; ret = avio_read(s->pb, palette, size - 4); if (ret < size - 4) return AVERROR(EIO);

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