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| author | Kostya <kostya.shishkov@gmail.com> | 2011-03-15 09:19:43 +0000 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2011-03-16 12:53:52 +0100 |
| commit | 8312e3fc9041027a33c8bc667bb99740fdf41dd5 (patch) | |
| tree | c94c3b3aa28fe2c7c86aa1ee8b019ac139b3681f | |
| parent | 1dac4d554734b16757b36a0adc71642c5ef2c4e6 (diff) | |
| download | ffmpeg-8312e3fc9041027a33c8bc667bb99740fdf41dd5.tar.gz | |
Do not attempt to decode APE file with no frames
This fixes invalid reads/writes with this sample:
http://packetstorm.linuxsecurity.com/1103-exploits/vlc105-dos.txt
| -rw-r--r-- | libavformat/ape.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/ape.c b/libavformat/ape.c index 6c269849fd..dd2aeb9ff3 100644 --- a/libavformat/ape.c +++ b/libavformat/ape.c @@ -242,6 +242,10 @@ static int ape_read_header(AVFormatContext * s, AVFormatParameters * ap) avio_seek(pb, ape->wavheaderlength, SEEK_CUR); } + if(!ape->totalframes){ + av_log(s, AV_LOG_ERROR, "No frames in the file!\n"); + return AVERROR(EINVAL); + } if(ape->totalframes > UINT_MAX / sizeof(APEFrame)){ av_log(s, AV_LOG_ERROR, "Too many frames: %d\n", ape->totalframes); return -1; |