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| author | Michael Niedermayer <michaelni@gmx.at> | 2005-01-08 14:21:33 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2005-01-08 14:21:33 +0000 |
| commit | 568e18b15e2ddf494fd8926707d34ca08c8edce5 (patch) | |
| tree | 18f59992848e24c529a01bd98aed66af3762b2d1 /libavformat/wc3movie.c | |
| parent | 934b0821dbb8fb33b2736fe4aab09fc2b6cc8ccc (diff) | |
integer overflows, heap corruption
possible arbitrary code execution cannot be ruled out in some cases
precautionary checks
Originally committed as revision 3813 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/wc3movie.c')
| -rw-r--r-- | libavformat/wc3movie.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/wc3movie.c b/libavformat/wc3movie.c index 15130d97cd..b5f5c35adf 100644 --- a/libavformat/wc3movie.c +++ b/libavformat/wc3movie.c @@ -169,6 +169,8 @@ static int wc3_read_header(AVFormatContext *s, if ((ret = get_buffer(pb, preamble, 4)) != 4) return AVERROR_IO; wc3->palette_count = LE_32(&preamble[0]); + if((unsigned)wc3->palette_count >= UINT_MAX / PALETTE_SIZE) + return -1; wc3->palettes = av_malloc(wc3->palette_count * PALETTE_SIZE); break; |