diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2013-12-18 23:46:37 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-12-18 23:46:37 +0100 |
| commit | 4e575adeff316b351bc777a24d4b6beb5ac58cb2 (patch) | |
| tree | 713abaacb3dbb310e75db8fb72ee05d60ad64eaf /libavformat/ipmovie.c | |
| parent | 947e40b9feb8cd2817ce1bce0d2f6735b1144480 (diff) | |
| download | ffmpeg-4e575adeff316b351bc777a24d4b6beb5ac58cb2.tar.gz | |
avformat/ipmovie: Check palette size in OPCODE_SET_PALETTE
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/ipmovie.c')
| -rw-r--r-- | libavformat/ipmovie.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/ipmovie.c b/libavformat/ipmovie.c index 3c53686a6a..4a766ef3ba 100644 --- a/libavformat/ipmovie.c +++ b/libavformat/ipmovie.c @@ -465,7 +465,8 @@ static int process_ipmovie_chunk(IPMVEContext *s, AVIOContext *pb, first_color = AV_RL16(&scratch[0]); last_color = first_color + AV_RL16(&scratch[2]) - 1; /* sanity check (since they are 16 bit values) */ - if ((first_color > 0xFF) || (last_color > 0xFF)) { + if ( (first_color > 0xFF) || (last_color > 0xFF) + || (last_color - first_color + 1)*3 + 4 > opcode_size) { av_dlog(NULL, "demux_ipmovie: set_palette indexes out of range (%d -> %d)\n", first_color, last_color); chunk_type = CHUNK_BAD; |