ffmpeg | branch: master | 孙浩 and 张洪亮(望初) <tony.sh and wangchu....@alibaba-inc.com> | Fri Aug 25 01:15:27 2017 +0200| [7e80b63ecd259d69d383623e75b318bf2bd491f6] | committer: Michael Niedermayer
avformat/cinedec: Fix DoS due to lack of eof check Fixes: loop.cine Found-by: Xiaohei and Wangchu from Alibaba Security Team Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7e80b63ecd259d69d383623e75b318bf2bd491f6 --- libavformat/cinedec.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/libavformat/cinedec.c b/libavformat/cinedec.c index 763b93ba2e..de34fb9638 100644 --- a/libavformat/cinedec.c +++ b/libavformat/cinedec.c @@ -267,8 +267,12 @@ static int cine_read_header(AVFormatContext *avctx) /* parse image offsets */ avio_seek(pb, offImageOffsets, SEEK_SET); - for (i = 0; i < st->duration; i++) + for (i = 0; i < st->duration; i++) { + if (avio_feof(pb)) + return AVERROR_INVALIDDATA; + av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME); + } return 0; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
